这题为什么选C,不能选BShe has two daughters ,____ are nurses.A.all of them \x05B.both of them \x05C.both of whom \x05D.all of whom

这题为什么选C,不能选BShe has two daughters ,____ are nurses.A.all of them \x05B.both of them \x05C.both of whom \x05D.all of whom
这题为什么选C,不能选B
She has two daughters ,____ are nurses.
A.all of them \x05B.both of them \x05C.both of whom \x05D.all of whom

这题为什么选C,不能选BShe has two daughters ,____ are nurses.A.all of them \x05B.both of them \x05C.both of whom \x05D.all of whom
“,”不能连接两个完整的句子.选B后面就是一个完整的句子,both of whom 引导定语从句修饰daughters

整个句子已经有主语SHE了！后面一句both of whom是做daughters的定语！