---Mum, would you please buy me an MP5 player?---If you can help do some housework the whole vacation, you ______ have one as a reward.A.mustB.needC.wouldD.shall
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D解析情态动词考查题。A. must “必须”B. need“需要”C. would“会”表将来D. shall“会”表允诺“妈妈给我买一个MP5可以么?”“如果你做一个假期的家务活,你会得到一个MP5。”