A number of new functions to the computer since it was first invented in 1946. A. have added B. were added C. have been adding D. have been added 查看更多

 

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A number of new functions ____ to the computer since it was first invented in 1946.

   A. have added                            B. were added  

   C. have been adding                   D. have been added

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根据句意从方框中选出合适的动词或短语,用其适当的形式完成句子

1.His film is sure to win the award because it ________ by most people.

2.Jack ________ his leg ________ when he was playing basketball yesterday.

3.________ to lose weight, he refused to eat chocolate.

4.After ________ high school, he went abroad for further study.

5.The doctor advised him ________ more outdoors activities.

6.He had much trouble ________ me for we had been apart(分开)for 10 years.

7.It was the second time that he ________ to give up smoking.

8.Some students stayed up late, ________ the coming examination.

9.We ________ the present situation in the Middle East.

10.A number of new functions(功能)________ the computer since it was first invented in 1946.

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