The light is still on. He --- out.A. can’t have goneB. mustn’t have goneC. have toD. ought

问题补充：

The light is still on. He --- out.

A. can’t have gone

B. mustn’t have gone

C. have to

D. ought have gone

答案：

(答案→)A. can’t have gone

B. mustn’t have gone

C. have to

D. ought have gone

解析：可联系答.案.网客服索取。