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1. —_do you go shopping

—Once a week.

A. How often    B.    What time    C.    How long    D.    How soon

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根據短文內容,回答下列問題。

36. How many levels of sleep are there?

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用所給單詞的適當形式填空,未提供單詞的根據上下文

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II._12._13._14._15._

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