1.      It’s bad manners to laugh ______ others when they are in trouble.

A. at                     B. to                  C. in                   D. at

2. Li Lei goes to school _____ 7:10 in the morning.

  A. on                     B. for                C. in                   D. at

3. ---- When did you leave home this morning?

  ---- _____ half past seven.

  A. On                    B. To                C. In                   D. At

4. ---- Mary won first prize in the speed contest.

  ---- No wonder. She began to learn English _____ the age of four.

  A. from                       B. in                    C. on                  D. at

5. Mr. Black is a hardworking engineer. He often stays up late ______ night.

  A. at                        B. to                  C. at                    D. on

6. They usually go shopping ______ their lunch break.

  A. among             B. during         C. between               D. against

7. I hear the 2006 World Cup is held in Germany _____ June 9^th _____ July 9^th.

  A. during; to        B. from; to        C. on; and                D. between; on

8. The plane will take off _____ an hour. Please check in right now.

  A. on                    B. at                   C. to                    D. in