He cought to have handed in the paper yesterday .That’s what he __________.
问题描述:
He cought to have handed in the paper yesterday .That’s what he __________.
(A) shoud have done
(B) should do
(C) should
(D) should be doing
答
a. should have done 虚拟语气,就是说他应该昨天交但他没交.