-- He hasn’t gone to the office up to now. -- Well, he .A.shouldB.ought toC.ough
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—— He hasn’t gone to the office up to now.
—— Well, he _______.
A.should
B.ought to
C.ought to go
D.ought to have
试题答案
D
如果不定式本身为完成时态,简略答语中常保留have。ought to have=ought to have gone to the office.