题目内容
-Look! It __________ be Jack on the playground.
-It ______ be him. Because I saw him enter the school library just now.
A. can; must B. can; cant C. may; mustn′t D. must; can′t
D
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题目内容
-Look! It __________ be Jack on the playground.
-It ______ be him. Because I saw him enter the school library just now.
A. can; must B. can; cant C. may; mustn′t D. must; can′t
D