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— ______ he have been chosen as captain of the football team

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— ______ he have been chosen as captain of the football team?— Yes,he ______.A.Can; must have B.Must; must have C.Can; must D.Must; must
答案选A.Can; must have
疑问句中表示可能性的推测,一般用can/could;must只能用于肯定句.由于对过去发生的事情进行推测,因此用must+ have (been)done结构,省略回答时,要保留have.