1 . I saw Li Lei h______ (隐藏) in the room when I walked by the window.

2 . 他去农场看见农夫正在喂牛。
He went to the farm and ________ the farmer ________ the cows.

3 . Alice was reading an English novel alone in the class. I saw that. (保持句意基本不变)
I ________ Alice ________ an English novel alone in the class.

4 . When I got home, I saw my brother ______ computer games.

A．is playing

B．play

C．playing

5 . 当我回到家时，我看见莉莉正在房间里跳舞。
When I got home, I ________ Lily ________ in the room.

6 . When I passed the teachers’ office, I saw Mr. Brown _________ (check) our homework.

7 . When I got out of the classroom, I saw some students ______ basketball.

A．play

B．to play

C．playing

D．played

8 . When she saw an old woman _________ (lie) on the side of the road, she called 120 at once.

9 . I saw her ________ (tie) a cow to the tree when I passed by the farm.

10 . If you see an old man l________ (躺) on the road, you should help him.