题目内容
6.The question is ______ it is worth doing.( )A. | if | B. | which | C. | whether | D. | what |
分析 问题是这件事情是否值得做.
解答 答案:C
分析句意可知,______ it is worth doing是一个表语从句,从句中缺少是否.但是if 不能用来引导表语从句.
点评 考生需对表语从句的特点掌握并注意区分if和whether.
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