---- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.

---- Oh, dear! She _______ a lot of difficulties!

A. may go through                       B. might go through

C. ought to have gone through             D. must have gone through

Nowadays millions of people of all age take pleasure in a                1. _______

hobby which is both interested and fun. And every year                  2. _______

more and more people start a stamp collection of your own                   3. _______

and discover an interest which can even last lifetime. Starting               4. _______

your collection of stamps are easy became they are everywhere.                  5. _______

Holiday and birthday postcards from relatives and letters             6. _______

from friends can all provide you for stamps from all over              7. _______

the world. So once you’ve started collecting seriously, you            8. _______

will probably want to join in the Stamp Collectors’ Club                 9. _______

which exist to add more stamps to your collection.                 10. _______

Mrs Green wants to buy that kind of cloth because she ____ that the cloth ____very well .

        A. has been told ; washes                   B. is told ; is washed

        C. has been told ; is washed                 D. is told ; is washed

Take a taxi , _____ you'll miss your train .

      A. and               B. if          C. otherwise    D. or

Relations between China and Africa are based on a balance of interests and ________ the needs and demands of developing countries.

A. provides                 B. provided                 C. providing    D. is providing

Dressed untidily and speaking in a strange way, Father must have ______ to the people present to be a silly old man.  

A. appeared         B. pretended        C. shown        D. thought

—How lovely these children are!

—Yeah．They______ memories of my childhood．

A. called out              B. called for        C. called up    D. called on

A political advisor suggested giving out red pockets to the whole nation directly to encourage economics，_____I believe is of great value.

A that             B. /            C. which     D. why

1. She lives next to ours, and we are good _______(邻居).     

2. The teacher told the boy that water ________ (沸腾) at 100 degrees centigrade.

3. Gandhi was the father of the Indian nation of the ________ (二十) century.

4. _______ (一般) speaking, boys likes football better than girls.

5. The problem is rather difficult to solve. It is _____ (超出) ability.

6. All kinds of information can be collected rapidly and ______ (方便) from the Internet.

7. A teacher is sure to teach his students to learn better and faster by ______(鼓励) them to think.

8. Up to now ,many girls in the poor mountain villages are _______(禁止) to go to school.

9. The “Heart to Heart” team is now putting on ______(表演) in Qing hai.

10. She bought some fruit and _____(蔬菜) on her way home.

Some people would rather ride bikes as bike ridding has_________ of the trouble of taking buses.

A. nothing         B. none        C. some         D. neither