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do的过去式是什么?

回答
瑞文问答

2021-10-01

do的人称和时态变化为:
第三人称单数:does;
现在分词:doing;
过去式:did;
过去分词:done。

扩展资料

  例句:

  What in the world did they think they were doing?

  他们到底认为自己在做什么?

  I could do it now, if you like.

  如果你愿意的话,我现在就可以做这事。

  What is he doing calling at this time of night?

  他干吗这么晚了还打电话?