1 . ________ you should do is to get down to your study from now on. Please concentrate on ________ is of great importance to your future development.

A．What; what	B．That; where
C．What; where	D．That; that

3 . There are some differences between American and British English, but do you know       the differences came into being?

A．how

B．what

C．whether

D．that

6 . 单句改错
1. If he will be invited to the meeting is not known.
2. The professor in the end decided to give the prize to who he believed had a good command of English.
3. Indeed, body positions are part of that we call “body language”.
4. It remains to be seen if or not this idea can be put into practice.
5. My initial reaction, after several days of uncertainty and anxiety over if schools would close, was a relief.
6. One reason why Hamlet is such a successful play is because it appeals to many different people.
7. He is that you call a “walking dictionary”; he knows almost every word.
8. The news which he intended to come gave us much pleasure.
9. In the morning, I had to break the news to Sandy which another little boy was missing his favorite toy.
10. That I had always considered old-fashioned and useless turned out to be of great use.

9 . 在法庭上，他们坚称自己没有犯抢劫罪。（guilty）（汉译英）