Question

【题目】This Physics problem is so difficult that I ______ if someone can work it out.

A.believeB.doubtC.guessD.admire

Answer 1

【答案】B

【解析】

句意：这道物理题太难了，我怀疑是否有人能解出来。

考查动词辨析。believe相信；doubt怀疑；guess猜；admire钦佩，根据所给空后面的if someone can work it out可知，应该是怀疑，故选B。