题目内容
Many people have been ill with a strange disease these days, _______ we’d never heard of before.
A. one B. that C. it D. this
A
解析:
考查代词。one表泛指,在这里作a strange disease的同位语。

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题目内容
Many people have been ill with a strange disease these days, _______ we’d never heard of before.
A. one B. that C. it D. this
A
考查代词。one表泛指,在这里作a strange disease的同位语。