Much to the parents' comfort, their income is now double______it was ten years ago.
A、
what
B、
that
C、
than
D、
which
【正确答案】
A
【答案解析】
分析句子结构可知,空处之后为表语从句,从句中was之后缺少表语,所以应用连接代词what引导。that引导表语从句时,本身无词义,在从句中不作任何成分;than不能引导表语从句;which引导表语从句时,意为“哪一个”,不符合句意。故选A。
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