题目内容

She was absent for the first time yesterday. She_________sick.

A. must be
B. has been
C. is
D. must have been

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He did very badly on the exam. He_________harder.

A. must study
B. must have studied
C. should study
D. should have studied

He_________ten lectures on American history, but he only gave two because of his illness.

A. had given
B. would give
C. must have given
D. should have given

We did hold a meeting yesterday, but you________. So we did not inform you.

A. did not need attending
B. needn't attending
C. did not need to attend
D. needn't attend

We came early and had to wait two hours before the ceremony began. We_______.

A. should not hurry
B. must not have hurried
C. need not hurry
D. need not have hurried