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【题目】Why is e-shopping getting more popular? Because it________save a lot of time if it is properly used.

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

【答案】A

【解析】句意:为什么在线购物变得更受欢迎了?因为如果恰当地使用,可以节省时间。A. can 能够,可以; 表示主语所具备的能力,也可以表示许可及推测;B. must必须;强调主观上的愿望;C. should 应该,表示责任与义务; D. need需要,必须。使用得当,在线购物可以节约时间,故选A。

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