问题
选择题
Many people have been ill from a strange disease these days, ________ we’ve never heard of before.
A．one
B．that
C．it
D．this
答案
答案：A
选A。one作同位语，指代前面的disease。
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Many people have been ill from a strange disease these days, ________ we’ve never heard of before.
A．one
B．that
C．it
D．this
答案：A
选A。one作同位语，指代前面的disease。