问题
选择题
—Sorry, sir. I can’t answer this question.
---Well, you are supposed______ this part of history.
A.reading
B.to be reading
C.to have read
D.having read
答案
答案:C
题目分析:考查虚拟语气:be supposed to have done 表示"本来应该已做了某事,但可能没做"。是一种虚拟语气,句意:--对不起,老师,我不会回答这个问题。--你应该读过历史的这个部分。选C。