— Bob didn’t pass this exam.— He.A. should study hardB. should have studied hardC. should

发布时间：2020-08-16 08:20:24


— Bob didn’t pass this exam.
— He    .
A. should study hard
B. should have studied hard
C. should be studying hard
D. study hard

网友回答

A. should study hard
(答案→)B. should have studied hard
C. should be studying hard
D. study hard
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