He didn’t pass the final examination.He ______ it.选项:a、must have prepared forb、ought to prepare forc、ought to have prepared ford、ought to prepare for

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Hedidn’tpassthefinalexamination.He______it.选项:a、musthavepreparedforb、oughttoprepareforc、oughttohavep

He didn’t pass the final examination.He ______ it.选项:a、must have prepared forb、ought to prepare forc、ought to have prepared ford、ought to prepare for
He didn’t pass the final examination.He ______ it.
选项:
a、must have prepared for
b、ought to prepare for
c、ought to have prepared for
d、ought to prepare for

He didn’t pass the final examination.He ______ it.选项:a、must have prepared forb、ought to prepare forc、ought to have prepared ford、ought to prepare for
选C
虚拟语气.
他没通过考试.他本该准备好的.(但他没有做)ought to have...本应该做.但没做

c

C

C

C 本应该…(而实际没…)