John'sscoreonthetestisthehighestintheclass;（）helastnight.
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must have done 这一句型结构。
Miss Green was____$100 for driving after drinking.
Theministeroffinanceisbelieved_____ofimposingnewtaxestoraiseextrarevenue.
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
_____enough time and money, the researchers would have been able to discover more in this field.
Ininternationalmatches,prestigeissoimportantthattheonlythingthatmattersistoavoid_____.
