12、--- Excuse me? Is Mr. Brown living here?

--- Sorry, He     to some other place.

A. is moving                B. moved                     C. has moved                D. had moved

11、To keep healthy, most retired old people _______ jogging as a regular form of exercise. 

A. take up              B. make up        C. put up                      D. bring up

10、Being a good listener is a kind of quality and that’s ________ it takes to keep friendship.

A. how                        B. what                        C. which                             D. where

9、Scientists say it may be five or six years ____ it is possible to test this medicine on human patients．

A. after                  B. since               C. before                     D. when

8、The Amazon Valley is very important to the natural balance of the earth. Forty percent of the world’s oxygen ______ there.

A. produces             B. is produced          C. has produced               D. has been produced

7、Once you turn off the television, you’ll be surprised how much extra time you’ll have        your life.

A. explore              B. to explore              C. exploring                   D. explored

6、These changes will cost quite a lot , ______ they will save us money in the long run.

A. so                          B. but                               C. or                                D. for

5、Happiness is an active state of mind ______ one thinks one’s life meaningful, satisfactory and comfortable.

A. where             B. which             C. there                      D. when

4、--- Did you attend Tom’s birthday party at the Grand Hotel?

--- I wish I ______. I _____ an English lecture in the school hall.

A. have; gave            B. did; have given        C. do; had given          D. had; was giving

3、Beijing National Stadium，the showpiece of the Beijing Olympics，has fallen into disuse since the end of the games，_________it difficult to make a profit

A．make                             B．to make             C．making                      D．made