13. ______ is known to us all that Shanghai will host the 2010 World Expo.

　 A. Which　　　　 　B. As　　　　　 　　C. That　　　　　 D. It

12. --- Have you handed in your schoolwork yet?

---Yes, I have. I guess it ________ now.

A. has graded　 　　B. is graded　 　　　C. is being graded　 D. is grading

11.The man ______ of shooting 6 school children was caught by Beijing police, the XINHUA News Agency reported on Friday.

A. being suspected　 B. suspecting　　　 C. suspected　　 D. to be suspected

10. ---What did you hear last night?

--- I seemed ______ someone knock at the door.

A. to have heard　　 B. to be heard　　 C. to be hearing　　 D. having heard

9. It was on my way back home _______ my father made the promise ______ I can do well in next exam he will buy me Lu Xun Complete Works.

A. when; that　 　　　 B. when; that if　　 　　　 C. that; why　 　　　　　　　 D. that; that if

8. All the characteristics that distinguish birds ____ other animals can be traced to prehistoric times.

A. to 　　　　 　　　　　　　　　　 B. between　　 　　 　　　 C. for　　　　 　　　　　　 D. from

7. - I’ve studied gardening as a hobby. Could I make some suggestions?

- ____.

A. Go ahead　　　　　　　 B. You will make it　　 C. Don’t mention it　 　　 D. Take it easy

6. He did it _________ it took me. 　 A. one-third a time　　　　 　　　　　　　　　　　　　　　　　　　 B. one-third the time 　 C. the one-third time　　　　 　　　　　　　　　　　　　　　　　　 D. one-third time

5. ______ scientists know where a storm will happen, winds will suddenly change, carrying the storm to a new direction. A. Even if 　　 　 　　　　　 B. Since　　　 　　　　　　 C. Despite　　　 　　 　D. Unless

4. It never ________ me that he might be in trouble.

A. happened to　 　　　　　　 B. adjusted to　 　　　　　　 C. belonged to　　　 D. occurred to