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Did you used to eat sweet when u were are a child和.
Did you eat sweet when u were are a child 有什麼分别?
他已是过去式,那加used to 是不是要强调什麼?
人气:349 ℃ 时间:2020-04-15 22:32:19
解答
used to do 是说过去常常,有一个频率上的限定.
而一般过去式只是表达过去的一个动作或一段时间的状态
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