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。
_____,hewouldnothaverecoveredsoquickly.
Thismissileisdesignedsothatonce_____nothingcanbedonetoretrieveit.
_________,themostcontroversialcandidateintheelectioncampaign,hehasbeenstronglycriticizedforhiscrudecommentsaboutwomen.
Heresented_____towait.Heexpectedtheminister_____himatonce.
Thecelebritysaysincourtpapersshe“hasno__________ofgivinganyauthorizationtoanyonetoproceedwithadivorce.”
