9.　　　　 Not until I returned home did I find my wallet lost.

8.　　　　 So much has he changed that I can hardly recognize him.

7.　　　　 Out came the cat, followed the ball.

6.　　　　 O the wall hangs a map of China.

5.　　　　 On the ground lay a boy of no more than 10 years old , badly wounded.

4.　　　　 Never in my life have I heard of or seen such a thing.

3.　　　　 Up jumped the cat and caught the mouse.

2.　　　　 The bell rang and in came Mr. Brown, with a book in his hand. Then the class began.

1.　　　　 Not only did he make a promise ,but also he kept it.

20.现在该你背课文了。