1 . 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

2 . 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

3 . 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

4 . 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 . English is a language shared by several diverse cultures, each of ________ uses it somewhat differently.

A．which

B．what

C．them

D．those

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 . John invited about 40 people to his wedding, most of 　　　 are family members.

A．them	B．that
C．which	D．whom

8 . The newly-built café, the walls of are painted light green, is really a peaceful place for us, especially after hard work.

A．that

B．it

C．what

D．which

9 . The children,　 　had played the whole day long,were worn out.

A．all of what	B．all of which
C．all of them	D．all of whom

10 . Last week, only two people came to look at the house, ________ wanted to buy it.

A．none of them

B．both of them

C．none of whom

D．neither of whom