—— He hasn’t gone to the office up to now. —— Well, he ＿＿＿＿＿. A. shouldB. ought toC. ought

—— 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

A. shouldB. ought toC. ought to go(答案→)D. ought to have解析：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.

好好学习下