1. The little girl must have lain there for a long time, hasn’t she?
2. I stood there, listening to the broadcast.
3. The professor prepares his lectures carefully before trying to carry them out in his class.
4. The cat in the bag made no sound.
5. Was it in the 1870’s that Marx started to learn Russian?
6. The World Trade Center is higher than all the buildings I have ever seen during my visit.
7. Music plays the most important part in his life.
8. Jennifer hardly goes to the theatre, does she?
9. Children should be taught how to get on well with each other.
10. The city government must take action to control the increasing population.
11. There are thirty students in our class. All of them are league members.
12. Mary and Tom have returned but the other students in the class haven’t come back yet.
13. Madam Lee made the babysitter do the housework again.
14. Sorry, I can’t solve your problems, I know little English.
15. I don’t trust him at all. His smiles always make me sick.
16. Shopping will be even cheaper if in holidays.
17. No one except my parents knows anything about it.
18. John is learning Chinese. So is his sister.
19. There isn’t anyone in the office.
20. Dr Dewey has four sons: one is in London and the others in New York.
21. Would you please say it again?
22. They are both going to see my mother this Sunday.
23. We students often help and learn from each other.
24. We have five typewriters in our office, but none of them are in good order.
25. None of them knew anything about it, because it was confidential.
选项A不对哦， 至少也该是 carry them out.
carry out: 实施
翻译：教授在进入教室讲课（做讲座）之前进行了认真的准备
翻译吗？还是选择填哪个？选项不够啊！
翻译的话，是：教授在进入教师做讲演（讲课）前进行了认真的准备。
教授在执行授课之前认真准备了他的讲座。
什么意思 表达清楚
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