题目内容
用正确的介词填空
Oxygen exists ________ the air．
Don't fall ________ such a foolish trick by the roadside．
用正确的介词填空。
The Italian pianist will perform in Nanjing this Saturday; on Sunday he will be ________ to Suzhou, where he will give another performance．
________ cold days, I always have to stay at home working on my some novels．
In winter, some places in China will be covered ________ snow．
Mrs．Fang is going to have a baby soon, so someone also will have to take ________ her classes．
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