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15.Let me take down ________ you've said ________ I forget.(  )
A.that,whenB.what,beforeC.which,beforeD.what,when

分析 稍等一会儿,在我忘记之前让我记下你所说的话.

解答 答案B.考查宾语从句和时间状语从句.第一空需填入一个引导词,作take down后的宾语从句,同时充当从句you've said中said的宾语,用what.第二空为时间状语从句,before I forget在我忘记之前.when表示"当…时".

点评 考查从句引导词,先分清从句的类型,再根据引导词在从句中充当的成分确定使用哪个引导词.

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