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they have worked in the factory for three years,(对划线部分提问)
how many have they worked in the factory?
但是答案用的是how many呀?所以我有点想不通,答案是不是错的啊
人气:152 ℃ 时间:2019-08-22 16:42:06
解答
是对three years提问?用how long似乎好些.
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