Everything was placed exactly it used to be before she left the laboratory．( )A．whyB．whenC．whereD．though 题目和参考答案——青夏教育精英家教网——

题目内容

18．Everything was placed exactly it used to be before she left the laboratory．（　　）

A．

why

B．

when

C．

where

D．

though

分析在她离开实验室之前，她把每件东西都准确地放在它们原来的位置上．

解答答案C．根据"place sth．sp．把某物放在某地=sth．be placed sp．"可知" it used to be"是地点状语从句．地点状语从句应该使用从属连词where来引导，故答案选C．when来引导时间状语从句，though来引导让步状语从句，why不用来引导状语从句，可用来引导定语从句和名词性从句．

点评本题考查从属连词的用法．连词的用法辨析，要注意分析主从句之间的逻辑关系，再确定相应的连词，同时注意不同的连词的语义及用法区别．

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