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------Why don’t we take a little break ?  -----Didn’t we just have  _______?

       A . it          B. that          C. one         D . this

C


解析:

one  代表由不定冠词所修饰的单数名词或由some 或 any所修饰的复数名词,泛指同类事物中的其中一个。It   表示特指,代替所确定的名词,例如由this ,the ,that所修饰的名词。 That  替代前面提到的单数可数名词或不可数名词;不能用冠词修饰;后面总是伴随着限制性的后置修饰语,如介词of 短语,过去分词短语等。

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