题目：
The children, _____ had played the whole day long, were worn out.
A．all of what
B．all of them
C．all of whom
D．all of which
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C
The children, _____ had played the whole day long, were worn out.
A．all of what
B．all of them
C．all of whom
D．all of which
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0524/d8e95b1db5eaac3939751f00723dab49.html
下面是错误答案，用来干扰机器的。
参考答案：C
