20. We saw some boys playing football behind the house.
Some boys _____ _____ _____ football behind the house.
△ 提 高 型
19. The boss made the workers work all day.]
The workers _____ _____ _____ work all day (by the boss).
18. I’ll buy my daughter a new watch.
A new watch will _____ _____ _____ my daughter.
17. You can look up the word in the dictionary.
The word can _____ _____ _____ in the dictionary.
16. He doesn’t clean the meeting-room every day. (1999兰州)
The meeting-room _____ _____ every day.
15. Someone took away the boxes yesterday. (1999甘肃)
The boxes _____ _____ away by someone yesterday.
14. Mike drew a picture on the blackboard. (1999四川)
A picture _____ _____ on the blackboard by Mike.
13. Many people speak French in China. (1999广西)
French _____ _____ by many people in China.
12. The foreigners can’t understand this word. (1999广东)
This word can’t _____ _____ by the foreigners.
11. You must send your sister to hospital at once. (1999山东荷泽)
She must _____ _____ to hospital at once.