Liz wasn't at work yesterday.she______ very well.选用must或can‘t以及正确的动词形式填空
问题描述：
Liz wasn't at work yesterday.she______ very well.
选用must或can‘t以及正确的动词形式填空
答
Liz wasn't at work yesterday.she___must not have felt___ very well.
答
应该是can't be,表推测