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14.There was _____ time _____ we were very good friends.But we no longer speak to each other now.(  )
A.a,thatB./,whenC.a,whenD.the,when

分析 曾经有一段时间我们是好朋友,但是现在我们互相不再说话.

解答 答案:C,考查冠词的用法,第一个空time表示"一段时光,一段时间",是可数名词,泛指"一段时光"前用不定冠词a,第二个空用一个引导词引导定语从句,修饰先行词time,先行词在从句充当时间状语,因此用when引导,故答案为C.

点评 考查冠词的用法,注意区分句中是泛指还是特指,泛指则用不定冠词a/an,特指则用定冠词the,还应区分定语从句的引导词.

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