用正确的关系代词填空。
1 The place ___________ we visited was the Great Wall.
2 The man ___________ I talked to was an engineer.
3 The boy___________ she is looking after is my brother.
4 This is the village ___________ we visited last week.
5 Miss Zhou wants to talk to the students ___________ homework hasn't been finished.
6 The boy___________ she is looking after is my brother.
7 This is the village ___________ we visited last week.
8 The boy ___________ is studying hard is John.
9 The watches ___________ were repaired last week have not been sent back.
10 This is the person ___________ you are looking for.
11 The city ___________ she lives in is very far away.
12 The building ___________ stands near the train station is a supermarket.
13 -Do you know the man ___________ is talking with your father？
-Yes， he’s our headmaster.
14 The first thing ____________ we should do is to work out the plan.
15 This is the way ___________ my father did this work

填写以下表格。

关系代词	指代	所作成分	是否可省略
that
which
who
whom
whose