收养
参考答案：
指公民，依法领养他人的子女为己之子女，使本无亲子关系的民事法律行为。
一个数的5倍是300，这个数是．______，这个数的4倍是______．
Cathy went to the hospital alone. If she had told me about it, I with her.
A．had gone
B．would have gone
C．would go
D．went
