26. Who are visiting the museum now? (改为被动语态)

　　　　 　　　　　　　　　　　the museum 　　　　　　　　　now?

25. The question isn't easy enough for them to answer. (改为复合句)

The question is 　　　　　　　　　　　they 　　　　　　　　　　　　.

24. The book cost him three dollars. (改为一般疑问句)

　　 　　　　　the book 　　　　him three dollars?

23. They need some more workers and money to build the bridge. (否定句)

　They 　　　　　　　　　more more workers and money to build the bridge.

22．Is the Science Museum open at weekends? (改为宾语从句)

Could you tell us_________the Science Museum______open at 　weekends?

21．The old man can hardly dress himself. (反意疑问句)

The old man can hardly dress himself, ___________________?

20．"Where will you wait for me?"she asked me. (用宾语从句合并成一句话)

She asked me________I________wait for her.

19．Jim is ill. Let's go and see him after school, _________________?

(完成反意疑问句)

18．Tom doesn't like physics. Mary doesn't like physics, either. (合并成一句话) _________Tom_________Mary likes physics.

17．She has already finished reading the novel. (改为否定句)

She________finished reading the novel________.