―Is your cousin good at his studies? ―He should be, but he not. He spends too much time on computer games. A. must B. can C. may D. need 【查看更多】

 

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—Is your cousin good at his studies?

—He should be, but he _______ not. He spends too much time on computer games.

A. must            B. can              C. may                   D. need

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