题目内容：

用that, which, who, whom, whose填空。

1.This is the boy ________ mother teaches us Chinese m our school.

2.This is the factory _________ I visited.

3.Is this factory the one ___________ a lot of students visited yesterday?

4.The first thing __________ we should do is to clean the room.

5.You should do all ___________ I told you to do.

6.The naughty boy can do something __________ will give you trouble.

7.This is the tallest building __________ I have ever seen.

8.This is the very person ___________ I need.

9.There is little __________ I can give you.

10.I will never forget the day __________ I spent with you.