there was no conclusive evidence.most people thought he was guilty．( )A．SinceB．WhileC．WhenD．However 题目和参考答案——青夏教育精英家教网——

题目内容

20．______ there was no conclusive evidence，most people thought he was guilty．（　　）

A．

Since

B．

While

C．

When

D．

However

分析尽管没有确凿的证据表明，但是大多数人都认为他有罪．

解答答A．
本题考查while引导让步状语从句，意思是"虽然…但是…．"、"尽管…但是…"（多放于句首）．而since"因为、自从"； When"当…..的时候"；，"但是、无论怎样"．由句意"尽管没有确凿的证据表明，但是大多数人都认为他有罪．"可知选B．

点评做此题时需根据题干提供的语境选择合适的从属连词．注意区别Since，When，However和while的用法．

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