题目内容

20、The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.

A. what          B. which         C. that       D. though

试题答案

20、C  

解析:本题考查间隔式同位语从句的用法。即先行词是the fact 和that引导的同位语从句中间隔了谓语部分。

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