共50条信息
I was about to go to bed _________ my mother came in.
每当你想要吸烟的时候，你就提醒你自己，你（已经）是不抽烟的人了。
you smoking a cigarette, remind yourself that you are a non-smoker.
我真的不知道这次事故是如何发生的。
I really didn’t know __________ the accident had _________ _________.
There is no doubt __________every year an increasing number of people come to visit our city.
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