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this kind of computers are very good,they_____ well and ____

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this kind of computers are very good,they_____ well and _____ already.
A.are sold...have sold out B.sold...had been sold out C.are sold...have been sold out D.sell...have been sold out .这题为什么会选A
this kind of computers are very good,they_____ well and ____
答案D
第一空说明的是“这种电脑”的属性,不可以用被动式
第二空要用被动式,强调“被售空”
再问: 可是答案选的是A
再答: 答案肯定是错的! 参考答案出错是常有的事 第一空表述的是主语的特征,性质,“很好销”,不强调“售卖”这一动作,不能用被动语态 拓展: The books sell well The cloth washes well. The pen writes smoothly