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There used to be lots of old city walls in beijing 的反意疑问句
人气:246 ℃ 时间:2020-03-25 20:46:49
解答
There used to be lots of old city walls in beijing,usedn't there?
如果陈述句部分的谓语含有used to,其反问部分既可用use(d)n’t,也可用didn’t.例如:
There used to be some trees in this field,use(d)n’t / didn’t there?
You used to smoke a pipe,use(d)n’t / didn’t you?
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