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_______ is the most useful invention?

时间:2022-09-10 13:28:58

_______ is the most useful invention?

A.Do you think which of these

B.Which of these do you think

C.Which of these you think

D.You think which of these

答案及解析: B

解析:

考查插入语。do you think是插入语,去掉后不影响句意,当that后用特殊疑问词时,不能省略that,A项错。故选B。

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