Her sons,both of _________ work abroad,will come back home this summer.
问题描述:
Her sons,both of _________ work abroad,will come back home this summer.
A.that B.who C.them D.whom 要有解析 答案是whom 本人认为whom不能做主语,想选who。
答
介词后用宾格,故答案是对的