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Keep up good state of mind even if you fail plenty of times. A. must B. will C.

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Keep up good state of mind even if you fail plenty of times. A. must B. will C.

Keep up good state of mind even if you _____ fail plenty of times.

A. must  B. will  C. can   D. should

试题答案

D

解析:

考查should的又一用法,should用在if或even if引导的表示条件的从句中,表示一件事听起来可能性很小,但也不是完全没有可能,相当于“万一”的意思,从句谓语由should加动词原形构成,主句不一定用虚拟语气,如:

Please ring me up if you should change your mind. 万一你改变主意,请让给我打个电话。

Should I (If I should) be free tomorrow, I will come. 万一我明天有时间,我就来。