You ______ yesterday if you were really serious about the job.

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You ______ yesterday if you were really serious about the job.

A. ought to come

B. ought come

C. ought have come

D. ought to have come

参考答案:

D17.考查情态动词及其时态。Ought to do sth应该做某事。排除选项 B和 C。条件从句的时态为过去时,主句有 yesterday,说明是过去发生的事情。情态动词后用完成时表示已发生的动作。选项 D 是正确的。