单选题____AWhileBSinceCBecauseDSuppose
单选题
____
A
While
B
Since
C
Because
D
Suppose
参考解析
解析：
while一般引导时间或让步状语从句。since一般引导时间或原因状语从句。because一般引导原因状语从句。suppose一般引导条件状语从句。从整个句子来看，所填的词要引导的是一个让步状语从句，故A项为正确答案。
while一般引导时间或让步状语从句。since一般引导时间或原因状语从句。because一般引导原因状语从句。suppose一般引导条件状语从句。从整个句子来看，所填的词要引导的是一个让步状语从句，故A项为正确答案。
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