2 . The old building, behind _____ was a famous church, was _____ we used to work.

A．that; the place	B．it; the place
C．what; where	D．which; where

3 . The growing speed of a plant is influenced by a number of factors, _____ are beyond our control.

A．most of them

B．most of which

C．most of what

D．most of that

5 . （2016·浙江）Scientists have advanced many theories about why human beings cry tears, none of ________has been proved.

A．whom	B．which
C．what	D．that

7 . 定语从句是整个高一英语语法的重中之重，请同学们结合所学将下列十句话进行改错，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在其下面写上该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
1. The baby which Tom is looking after is his brother.
2. My friend is the boy who T- shirt is black.
3. There was a time what the businessman lost heart.
4. The reason why she gave was not true.
5. Frederick William I , whom the amber room belonged, decided not to keep it.
6. Cindy is a lovely girl, with that many people like to make friends.
7. This is the room, the roof of whom is red.
8. Which we all know, China is a developing country.
9. This is the book which I bought it yesterday.
10. He is a student who have a gift for maths.

8 . The old woman has two sons, both of ______are doctors.

A．them

B．who

C．whom

D．whose

9 . Ten years ago Wang Lin left his village,_________which he was never to return. (用适当的词填空)