diff --git a/.vs/AIProofread/v17/.suo b/.vs/AIProofread/v17/.suo
index e4c1dea..2c5f0a1 100644
Binary files a/.vs/AIProofread/v17/.suo and b/.vs/AIProofread/v17/.suo differ
diff --git a/AIProofread/AIProofread.csproj.user b/AIProofread/AIProofread.csproj.user
index 5a3723a..2cd0081 100644
--- a/AIProofread/AIProofread.csproj.user
+++ b/AIProofread/AIProofread.csproj.user
@@ -7,7 +7,7 @@
     <SupportUrlHistory />
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
-    <StartAction>Program</StartAction>
-    <StartProgram>C:\Soft\Kingsoft\WPS Office\12.1.0.16412\office6\wps.exe</StartProgram>
+    <StartAction>Project</StartAction>
+    <StartProgram>C:\Soft\Kingsoft\WPS Office\12.1.0.16910\office6\wps.exe</StartProgram>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/AIProofread/Bridge.cs b/AIProofread/Bridge.cs
index 499a03c..4102847 100644
--- a/AIProofread/Bridge.cs
+++ b/AIProofread/Bridge.cs
@@ -42,7 +42,7 @@ namespace AIProofread
 
         private static readonly Dictionary<BridgeEvent, List<BridgeEventHandler>> eventHandlers = new Dictionary<BridgeEvent, List<BridgeEventHandler>>();
 
-        private static readonly Dictionary<int, ProofreadItem> marks = new Dictionary<int, ProofreadItem>();
+        public static Dictionary<int, ProofreadItem> marks;
 
         private static int selectProofreadId = -1;
 
@@ -215,14 +215,19 @@ namespace AIProofread
         // 清除所有标记
         public void clearAllProofreadMark()
         {
+            // 设置当前文档数据
+            Globals.ThisAddIn.ActiveCurrentDocumentMarks();
             try
             {
                 selectProofreadId = -1;
                 foreach (var item in marks.Values)
                 {
-                    if (item.mark != null && item.content.tag == "i" && item.content.isAccept == AcceptStatus.Default)
+                    if (item.mark != null)
                     {
-                        item.mark.Text = "";
+                        if(item.content.tag == "i" && item.content.isAccept == AcceptStatus.Default) { 
+                            item.mark.Text = "";
+                        }
+                        item.ResetMarkStyle();
                     }
                 }
                 marks.Clear();
@@ -363,6 +368,9 @@ namespace AIProofread
 
         public void SelectMarkById(int proofreadId)
         {
+            // 设置当前文档数据
+            Globals.ThisAddIn.ActiveCurrentDocumentMarks();
+
             if (proofreadId == selectProofreadId) return;
             var doc = Globals.ThisAddIn.Application.ActiveDocument;
             // 取消上一个标签移除
@@ -422,6 +430,7 @@ namespace AIProofread
             List<DocumentCorrectItem> list = JsonConvert.DeserializeObject<List<DocumentCorrectItem>>(content);
             // 先清除所有数据
             clearAllProofreadMark();
+
             //var app = Globals.ThisAddIn.Application;
             //var cur = app.Selection;
             // 
@@ -439,7 +448,7 @@ namespace AIProofread
                     int index = 0;
                     foreach (var item in correct.Diffs)
                     {
-                        var mark = AddBookmark(item, index, correct.Offset, correct.Insert_len);
+                        var mark = AddBookmark(item, index, correct.Sentence_offset, correct.Insert_len, correct.Paragraph_offset);
                         if (item.tag != "i") index++;
                         if (mark != null) {
                             marks.Add(item.id, new ProofreadItem(item, mark));
@@ -465,22 +474,50 @@ namespace AIProofread
         }
         
 
-        public Microsoft.Office.Tools.Word.Bookmark AddBookmark(CorrectedContent item, int findIndex, int offset, int length)
+        public string GetParagraph(int index)
+        {
+
+            var document = Globals.ThisAddIn.Application.ActiveDocument;
+            try
+            {
+                var paragraphs = document.Paragraphs;
+                var total = paragraphs.Count;
+                // 判断索引是否超出范围
+                if (index > total)
+                {
+                    return null;
+                }
+                var paragraph = document.Paragraphs[index];
+                return paragraph.Range.Text;
+            }
+            catch (Exception ex)
+            {
+                return "error:" + ex.Message;
+            }
+        }
+
+        public Microsoft.Office.Tools.Word.Bookmark AddBookmark(CorrectedContent item, int findIndex, int offset, int length,int paragraphIndex)
         {
             Microsoft.Office.Tools.Word.Bookmark bookmark = null;
             try
             {
                 var document = Globals.ThisAddIn.Application.ActiveDocument;
                 ControlCollection controls = Globals.Factory.GetVstoObject(document).Controls;
-                var Start = offset;
-                var End = offset + length - 1;
-                // 整体选区的内容
+                // 判断并获取当前段落
+                if (paragraphIndex > document.Paragraphs.Count) return null;
+                var paragraph = document.Paragraphs[paragraphIndex];
+                var paragraphStart = paragraph.Range.Start;
+                var Start = paragraphStart + offset;
+                var End = paragraph.Range.Start + length - 1;
+
+                // 当前句子的选区
                 var fullRange = document.Range(Start, End);
                 string fullText = fullRange.Text;
-                End = offset + item.start;
-                Start = offset + item.end;
+                Start = paragraphStart + offset + item.start;
+                End = paragraphStart +  offset + item.end;
 
-                var r = document.Range(End, Start);
+                // 定位要操作的文字
+                var r = document.Range(Start, End);
                 var markName = Config.BuildBookmarkName(item.id);
 
                 // 判断是否已经存在
diff --git a/AIProofread/ProofreadItem.cs b/AIProofread/ProofreadItem.cs
index 23d7800..a5f883e 100644
--- a/AIProofread/ProofreadItem.cs
+++ b/AIProofread/ProofreadItem.cs
@@ -90,9 +90,10 @@ namespace UtilLib
             mark.Shading.BackgroundPatternColor = (WdColor)ColorTranslator.ToOle(Colors.FromHex(content.color));
         }
 
-        private void ResetMarkStyle()
+        public void ResetMarkStyle()
         {
             if (mark == null) return;
+            mark.Range.Font.Size = originSize; // 还原
             //mark.Range.Underline = Microsoft.Office.Interop.Word.WdUnderline.wdUnderlineNone;
             mark.Range.Shading.BackgroundPatternColor = Microsoft.Office.Interop.Word.WdColor.wdColorAutomatic;
         }
diff --git a/AIProofread/ThisAddIn.cs b/AIProofread/ThisAddIn.cs
index 6e328e0..3f67d3d 100644
--- a/AIProofread/ThisAddIn.cs
+++ b/AIProofread/ThisAddIn.cs
@@ -46,6 +46,7 @@ namespace AIProofread
         public Dictionary<Word.Document,bool> panelsVisible = new Dictionary<Word.Document, bool>();
         public CustomTaskPane currentDocumentTaskPane;
 
+        private static readonly Dictionary<Word.Document, Dictionary<int, ProofreadItem>> allMarks = new Dictionary<Word.Document, Dictionary<int, ProofreadItem>>();
 
         private void Application_WindowDeactivate(Word.Document doc, Window Wn)
         {
@@ -67,30 +68,51 @@ namespace AIProofread
             
         }
 
-        private void Application_WindowActivate(Word.Document Doc, Window Wn)
+        private void Application_WindowActivate(Word.Document activeDoc, Window Wn)
         {
-            Logger.Log("Application_WindowActivate -- " + Doc.FullName);
+            // 当前文档添加书签集合
+            if (!allMarks.ContainsKey(activeDoc))
+            {
+                allMarks[activeDoc] = new Dictionary<int, ProofreadItem>();
+            }
+            Logger.Log("Application_WindowActivate -- " + activeDoc.FullName);
             //ShowPanel(Doc);
 
-            if (!taskPanels.ContainsKey(Doc))
+            if (!taskPanels.ContainsKey(activeDoc))
             {
-                ShowPanel(Doc,false);
+                ShowPanel(activeDoc,false);
             }
-            this.currentDocumentTaskPane = taskPanels[Doc];
+            this.currentDocumentTaskPane = taskPanels[activeDoc];
             if (IsWPS)
             {
-                HideOtherPanel(Doc);
+                HideOtherPanel(activeDoc);
             }
-            if (panelsVisible.ContainsKey(Doc) && panelsVisible[Doc])
+            if (panelsVisible.ContainsKey(activeDoc) && panelsVisible[activeDoc])
             {
-                taskPanels[Doc].Visible = true;
+                taskPanels[activeDoc].Visible = true;
             }
         }
 
-        private void Application_DocumentBeforeClose(Word.Document Doc, ref bool Cancel)
+        private void Application_DocumentBeforeClose(Word.Document currentDoc, ref bool Cancel)
         {
-            Logger.Log("Application_DocumentBeforeClose -- " + Doc.FullName);
-            DisposePanel(Doc);
+            Logger.Log("Application_DocumentBeforeClose -- " + currentDoc.FullName);
+            if (allMarks.ContainsKey(currentDoc))
+            {
+                allMarks.Remove(currentDoc);
+            }
+
+            DisposePanel(currentDoc);
+        }
+
+        public void ActiveCurrentDocumentMarks()
+        {
+            // 判断是否存在 没有的话初始化
+            var currentDoc = Application.ActiveDocument;
+            if (!allMarks.ContainsKey(currentDoc))
+            {
+                allMarks[currentDoc] = new Dictionary<int, ProofreadItem>();
+            }
+            Bridge.marks = allMarks[currentDoc];
         }
 
         private void Application_NewDocument(Word.Document Doc)
diff --git a/AIProofread/obj/Debug/AIProofread.csproj.AssemblyReference.cache b/AIProofread/obj/Debug/AIProofread.csproj.AssemblyReference.cache
index cd4c4b6..c635e1e 100644
Binary files a/AIProofread/obj/Debug/AIProofread.csproj.AssemblyReference.cache and b/AIProofread/obj/Debug/AIProofread.csproj.AssemblyReference.cache differ
diff --git a/AIProofread/obj/Debug/AIProofread.dll b/AIProofread/obj/Debug/AIProofread.dll
index a4df31a..288ecf0 100644
Binary files a/AIProofread/obj/Debug/AIProofread.dll and b/AIProofread/obj/Debug/AIProofread.dll differ
diff --git a/AIProofread/obj/Debug/AIProofread.pdb b/AIProofread/obj/Debug/AIProofread.pdb
index 4e67dce..d4a9865 100644
Binary files a/AIProofread/obj/Debug/AIProofread.pdb and b/AIProofread/obj/Debug/AIProofread.pdb differ
diff --git a/AIProofread/obj/Debug/DesignTimeResolveAssemblyReferences.cache b/AIProofread/obj/Debug/DesignTimeResolveAssemblyReferences.cache
index 1dddad4..cb538fa 100644
Binary files a/AIProofread/obj/Debug/DesignTimeResolveAssemblyReferences.cache and b/AIProofread/obj/Debug/DesignTimeResolveAssemblyReferences.cache differ
diff --git a/util-lib/DocumentCorrectItem.cs b/util-lib/DocumentCorrectItem.cs
index 274695c..2587227 100644
--- a/util-lib/DocumentCorrectItem.cs
+++ b/util-lib/DocumentCorrectItem.cs
@@ -9,6 +9,8 @@ namespace UtilLib
         public string New_text { get; set; }
         public int Insert_len { get; set; }
         public int Offset { get; set; }
+        public int Paragraph_offset { get; set; }
+        public int Sentence_offset { get; set; }
         public List<CorrectedContent> Diffs { get; set; }
     }
 }
diff --git a/util-lib/ToolUtil.cs b/util-lib/ToolUtil.cs
index 98a4888..f08b946 100644
--- a/util-lib/ToolUtil.cs
+++ b/util-lib/ToolUtil.cs
@@ -9,7 +9,7 @@ namespace UtilLib
             StringBuilder sb = new StringBuilder();
             for (int i = 0; i < len; i++)
             {
-                sb.Append(' ');
+                sb.Append("　");
             }
             return sb.ToString();
         }