用适当的关系代词填空that which who whom1.7The first thing ( )you must
用适当的关系代词填空
that which who whom
1.7The first thing ( )you must do is to have a meal.
2.April lst is the day ( )is called April Fool's Day in the west.
3.The family ( )had lost everything in a bigfire got much help from ther friend.
4.The house ( )we live in is very old.
5.Didn't you see the man ( )I talked with just now?