17.You __________ be careful with the camera.It costs!(  )
A.mustB.mayC.canD.will

分析 句意:你必須要小心的對(duì)待照相機(jī),它很昂貴!

解答 答案A.
must"必須,肯定";may"可能,祝愿";can"能夠,有時(shí)會(huì)";will"表示意愿或請(qǐng)求".
故選A.

點(diǎn)評(píng) 本題是考查情態(tài)動(dòng)詞.情態(tài)動(dòng)詞的使用要結(jié)合具體的語境,由"it costs"得知,答案選A.

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