六盘水首钢水钢总医院:一个英语问题

来源:百度文库 编辑:高校问答 时间:2024/05/04 18:56:52
I didnt see my pen.It -------.

A.might lose
B.would have lost
C.should have lsot
D.must have lost

D.....
must表示揣测的问题..
偶们才学.

D must表示肯定揣测

D.must have lost

D.must have lost
必须清楚..是已经丢了

D~表示推测用MUST~~~~~~~~~

d