1 . English is a language shared by several diverse cultures, _________ uses it differently.

A．all of which

B．each of which

C．all of them

D．each of them

2 . In 1963 the UN set up the World Food Program, one of ________ purposes is to relieve worldwide starvation.

A．which	B．it’s
C．whose	D．whom

3 . I was told that there were about 50 foreign students         Chinese in the school, most        were from Germany.

A．studying; of whom	B．study; of whom
C．studying; of them	D．study; of them

4 . She showed the visitors around the museum, the construction _______ had taken more than three years.

A．for which

B．with which

C．of which

D．to which

5 . 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

6 . （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 . It is reported that two schools,　　1　　are being built in my hometown,will open next year.

A．they both

B．which both

C．both of them

D．both of which

8 . Recently I bought an ancient Chinese vase, ________ was very reasonable.

A．which price	B．the price of which
C．its price	D．the price of whose

9 . I met some students in that college, several of ______ were freshmen.(用适当的词填空)