I enjoyed very much the three years ______ it had taken me to study English at school.
| A．which | B．what | C．when | D．how |
----What do you think of the Chinese language today?
---- Quite popular. It __________ an important role in communicating with other countries. More and more foreign friends are learning Chinese.
| A．plays | B．played | C．has played | D．will play |
The farmer grows various kinds of crops, __________wheat, cotton and rice.
| A．for example | B．as | C．that is | D．such as |
To improve your spoken English, you’d better listen to the tape __________.
| A．generally | B．fluently | C．frequently | D．gradually |
Scientists say it will be five or six years __________ it is possible to test this medicine on humans.
| A．after | B．before | C．since | D．when |
Some people do not have enough to eat while some others throw away food just__________ its poor taste.
| A．because of | B．according to | C．instead of | D．in spite of |