-The fog is so thick that the express way have been closed. -You are right.I hav
来源:网络
时间:
推荐文章

-The fog is so thick that the express way ________ have been closed.
-You are right.I ________ have thought of that.Now we have to take another road.
[]A.can; should
B.may; can
C.should; must
D.must; should
试题答案
答案:D