问题
选择题
Half of them,____ is 50, can speak fluent Chinese.
A．that
B．which
C．who
D．it
答案
答案：A
that is / that is to say也就是说
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Half of them,____ is 50, can speak fluent Chinese.
A．that
B．which
C．who
D．it
答案：A
that is / that is to say也就是说