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。
Ininternationalmatches,prestigeissoimportantthattheonlythingthatmattersistoavoid_____.
Aleading___________intelligenceandoperationscompanyhasreleaseditsanalysisofworldwidereportedincidentsofpiracyandcrimeagainstmariners.
Evenifhisletter（）tomorrow，it（）toolatetodoanything.
____youwerebusy,Iwouldn’thavebotheredyouwithquestions.
HismannerwassopleasantthatBollafeltat（）withhimatonce.
