题目内容：

It is very cold in the n______ of China in winter.

优质解答

north 北方
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追问：

I have a red pen.bill a____ has one.

追答：

also 也

追问：

Bike is anther way of b______ .

追答：

bicycle 请考虑采纳，谢谢。

追问：

他爸爸一定在家 His father _______ ________ at home .

追答：

must be

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