If I ______ harder for the final exam, I should have passed it.A、studyB、had st

游客2024-06-30  13

问题 If I ______  harder for the final exam, I should have passed it.

选项 A、study
B、had studied
C、studied
D、was studying

答案 B

解析 句中的陈述与过去事实相反,因此从句用had studied,主句用should+have done 的形式。
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