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14. New medicines and instruments ______ every day to extend life.

A. develop                         B. are being developed

C. are developing                    D. have developed

[答案与解析]

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13. A red sky in the morning ______ to be a sign of bad weather.

A. says                           B. is saying

C. has said                          D. is said

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12. Hundreds of jobs _______ if the factory closes.

A. lose                           B. will be lost

C. are lost                         D. will lose

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11. “Look! Everything here is under construction.” “What is the small building that ______for?”

A. is being building                   B. has been built

C. is built                          D. is being built

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10. He kept a little notebook, in which ______ the names and addresses of his friends.

A. wrote                         B. was writing

C. was written                      D. were written

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9.”How about the dishes, Dear?” “The beef didn’t taste very good. It ______ too long.”

A. cooked                         B. had been cooked

C. was cooked                      D. had cooked

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8. With the development of science, more new technology _______ to the fields of IT.

A. has introduced                    B. is being introduced

C. is introduced                     D. was introduced

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7. The students _____ £50 a year to cover the cost of books and stationery.

A. give                           B. are given

C. have given                       D. to give

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6. I’ll come after the meeting if time ______.

A. permits                         B. is permitting

C. is permitted                      D. has permitted

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5. New medicines and instruments ______ every day to extend life.

A. develop                         B. are being developed 

C. are developing                    D. have developed

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