百问百答:used to怎么也搞不清?
1.used to do
2.be used to do
3.be used to doing
结构1:used to对应would,过去常常做某事。
I used to play football every day.
结构2:be used被动,be used(to do)被用来做什么
The box is used to do exercise.
结构3:used形容词,习惯,be used(to doing)习惯做什么事情。
I am used to getting up early every morning.
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