【題目】— Must we clean our classroom right now?

— No. You just need to clean it before all the students.________this morning________this afternoon is OK.

A.Both; andB.Either; orC.Not only; but also

【答案】B

【解析】

句意：——我們必須立刻打掃我們的教室嗎？——不，你只需要在所有學(xué)生到之前打掃。或者今天早晨或者今天下午都可以。

考查表選擇關(guān)系的并列連詞。Both; and兩者都；Either; or或者……或者；Not only; but also不僅……而且，根據(jù)所給空前面的You just need to clean it before all the students和后面的is ok可知，應(yīng)該是或者……或者，故選B。

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