diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6753155..c134ae7 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -22,7 +22,7 @@
         android:usesCleartextTraffic="true"
         tools:targetApi="31">
         <activity
-            android:name=".MainActivity"
+            android:name=".activity.MainActivity"
             android:screenOrientation="portrait"
             android:exported="true">
             <intent-filter>
@@ -32,10 +32,10 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".EnglishActivity" android:screenOrientation="portrait" />
-        <activity android:name=".CharActivity" android:screenOrientation="portrait" />
-        <activity android:name=".CharXiaoActivity" android:screenOrientation="portrait" />
-        <activity android:name=".WebviewActivity" android:screenOrientation="portrait" />
+        <activity android:name=".activity.ExamActivity" android:screenOrientation="portrait" />
+        <activity android:name=".activity.EnglishActivity" android:screenOrientation="portrait" />
+        <activity android:name=".activity.CharEngActivity" android:screenOrientation="portrait" />
+        <activity android:name=".activity.WebviewActivity" android:screenOrientation="portrait" />
     </application>
 
 </manifest>
\ No newline at end of file