The porter ______ the fire-brigade as soon as he saw the fire in the stock,which went up in smoke.A.ought to callB.ought to have called C.should callD.should have calling
问题描述：
The porter ______ the fire-brigade as soon as he saw the fire in the stock,which went up in smoke.
A.ought to callB.ought to have called
C.should callD.should have calling
答
选B. 表示本应该。。。 这里可填 ought to have done 或 should have done
答
B ought to(shoud)have done sth, 本来应该做某事而事实上没做
这里就是本来应该叫消防车结果没有，所以就起火了
答
B
这是情态动词加现在完成时,表对过去的推测
ought to have called =should have called
意思是,本应该一看到火情,立刻打电话给消防队的,可是他没有,因为后文里有他没有,她继续让火情延续