试题与答案

— A computer is very popular and helpful

题型:选择题

题目:

— A computer is very popular and helpful .

— I think so. It _______ in many different fields.

A.used

B.will use

C.is used

D.was used

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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