来自程飞的问题
1、Mac(whom)youmetyesterdayismyfriend.可不可以用who?2、Heistheboythatoftencomeshere.可不可以用who?3、Thebookthatisondeskismine.同上which?
1、Mac(whom)youmetyesterdayismyfriend.可不可以用who?
2、Heistheboythatoftencomeshere.可不可以用who?
3、Thebookthatisondeskismine.同上which?

