题目

——Where is Mike?
——He ______ to the library.
A.has gone B.has been C.went to D.gose
I don't believe that you can work out the problom,______?
A.can you B.don't you C.can I D.can you
I haven't seen her since my dear aunt _______ here.
A.left B.has left C.is left D.had left
Could you tell me______________?
A.where is the post office
B.how could I go to the post office
C.wher the post office is
D.how i could go to the post office
第二题的D是：D.can't I

提问时间：2020-11-24

答案

A has gone已去未回 has been 曾去已回
A 主句主语第一人称反问从句主语,注意宾语从句否定转移
A 现在完成时+since+一般过去时
C 宾语从句陈述语序