John's score on the test is the highest in the class ; （）he last night.
A、muststudyC
「句意」约翰的考试分数全班最高;他昨天晚上一定学习了。
「难点」表示对过去某一动作行为的猜测须要用musthavedone这一句型结构。
The celebrity says in court papers she “has no __________ of giving any authorization to anyone to proceed with a divorce. ”
_____enough time and money, the researchers would have been able to discover more in this field.
We can hear____from the back of the room.
Evenasagirl,_____tobeherlife,andtheateraudiencesweretobeherteachers.
He set up in business____his own and was very successful.
