问题
选择题
China is trying to find ways to take care of the children parents have left their homes to work in cities.
A．that
B．who
C．whose
D．which
答案
答案：C
本题后半句修饰children作定语从句，由于先行词在从句中作定语，而且表示人，通常用关系词whose，故选C。
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