1.A.The old man has two sons.Both of them are lawyers.

问题描述:

1.A.The old man has two sons.Both of them are lawyers.
B.The osd man has two sons,( ) ( ) ( )are lawyers.
2.A.Have you heard of an animal called kangaroo?
B.Have you heard of an animal( ) ( ) ( ) (

both of which
定语从句
whose name is kangaroo
定语从句
肯定正确