题目

Tina was hesitating about the job offer as she did not know        the company was an established one. A.whether            B.what               C.until             D.although   答案: A   考查名词性从句。句意为:Tina对所提供的工作正在犹豫中,因为她不知道这家公司是不是一家地位稳固的公司。此处whether引导宾语从句,作know的宾语。  
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