摘要： –The floor is dirty. Can anyone clean it? – I do it all the time. A. Don’t mention it. B. Why you? C. Not sure D. Not me again.
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I want to be a doctor. –Doctors in every part of the world, I think.
A need B are needed C are needing D will need
查看习题详情和答案>>Our environment is getting worse than before. –You’re right. But thanks to Earth Day, people have done more and more useful things to protect the earth since Earth Day .
A is started B was started C has started
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