问题描述:
he has 2 sons,___work as chemists.
为什么用BOTH OF THEM,不用BOTH OF WHOM?
选项是two of whom ,both of whom,both of which,all of whom.
从这里面选,选什么,为什么?以上的BOTH OF THEM用法对吗?
为什么用BOTH OF THEM,不用BOTH OF WHOM?
选项是two of whom ,both of whom,both of which,all of whom.
从这里面选,选什么,为什么?以上的BOTH OF THEM用法对吗?
问题解答:
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