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        1. 【題目】You put the seatbelt(安全帶)on before driving.

          A. canB. mustC. wouldD. could

          【答案】B

          【解析】

          句意:開車前必須系好安全帶。

          本題考查情態(tài)動(dòng)詞的用法。A. can能,會(huì);B. must必須;C. would (will的過(guò)去式,用于轉(zhuǎn)述)將,將會(huì);D. could用于can的過(guò)去時(shí),能,可以。根據(jù)on before driving.可知,此空是必須,一定的意思,此空故填. must,故選B

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