问题

Tom’s score on the test is the highest in the class. He _____.

A:should study last night
B:should have studied last night
C:must have studied last night
D:must study last night;

正确答案是：

同类题型

When I was in Spain last summer, I ______ quite a lot of Spanish

____ you come to my birthday partytomorrow, Robert–I’m afraid not. I have to study for myexam.

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Thanks __ helping me, Jim.