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情态动词的题 就一道 _____he have been chosen as captain of our school

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情态动词的题 就一道 _____he have been chosen as captain of our school football team
-_____he have been chosen as captain of our school football team
-Yes ,he _____.Can't you see he's wearing an armband
A.can ;can B.Must ;must have C.Must ;must D.Can;must have
关键是第二空,为什么must 后有个have 这里是省略还是指代什么
情态动词的题 就一道 _____he have been chosen as captain of our school
本题是情态动词的用法,是用情态动词加have done 对过去已发生事情进行推断,can用于否定句和疑问句,must(一定) ,may(可能),might\could(或许)用于肯定句,发生的可能性依次降低,have是助动词,不能译为“有”,本句译为:他能被选为了我们学校足球队的队长了吗?是的,他一定被选上了,难道你没看见他正带着臂章吗?第二空must have 后省略了been chosen as captain of our school football team .不要把本题理解为现在完成时.