【題目】If you turn off the lights, the screen of the computer ______ be more clear.

A.mustB.has toC.is toD.can

【答案】D

【解析】

考查情態(tài)動詞。句意：如果你把燈關掉，電腦的屏幕可能會更清晰。A. must必須；B. has to不得不；C. is to將要；D. can可能。此處表示一種客觀事實的推測，“可能”，故選D項。

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