The young couple decided totwo homeless boys though they had three of their own.A. adaptB

问题补充：

The young couple decided totwo homeless boys though they had three of their own.

A. adapt

B. bring

C. receive

D. adopt

答案：

A. adapt

B. bring

C. receive

(答案→)D. adopt

解析：句意: 这对年轻的夫妇自己已经有三个子女,但还是决定收养两个孤儿。分析句意空白处应填“收养”，选项D符合题意。adapt 使适应，结构为：adapt oneself/sb to sth；bring 与up搭配可表示“养育；抚养”； receive收到；欢迎；接受。