1 . The factory produces half a million pairs of shoes every year, 80%_________are sold abroad.

A．of which

B．which of

C．of them

D．of that

2 . English is a language shared by several cultures, each of ______ sees it differently.

3 . That evening,   ________ I will tell you more about later, I ended up working very late. (用适当的词填空)

4 . The humans are destroying nature day by day, __________ , of course, will cause severe punishment from it sooner or later.

5 . He wrote many books, two of________ have been published so far. (用适当的词填空)

6 . The boy bought a new dictionary__________ he turned for help.

A．from which

B．into which

C．which

D．to which

7 . The two things ______ the couple felt most proud were their small garden and their sports car.

A．about which	B．of which
C．for which	D．in which

8 . I was driving on the highway ________ a car went past followed by a police car, both of _______ must have been running at a speed of 150 kilometers per hour.

A．as; which	B．while; them
C．when; which	D．when; that

9 . —Where did you find Mr. Brown? —It was in the factory ______ he paid a visit yesterday.

A．to which

B．that

C．which

D．to where

10 . It was in the small house _____ was built with stones by his father _____ he spent his childhood.

A．which, that

B．that, which

C．which, which

D．that, where