1 . I really don’t know why his latter discovery, _________ greater importance to science, is not so well-known to the world.

A．which I think is of	B．which I think it is of
C．of which I think it is	D．I think which is of

2 . By serving others, a person focuses on someone other than himself or herself, ________ can be very eye-opening and rewarding.

A．who	B．which
C．what	D．that

3 . 【2018·北京】She and her family bicycle to work, _________ helps them keep fit.

A．which	B．who
C．as	D．that

4 . 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

5 . This year’s children’s party, ________ some parents were invited to, was a great success.

A．which

B．why

C．whose

D．where

6 . His movie won several awards at the film festival, ________ was beyond his wildest dream.

A．which

B．that

C．where

D．it

7 . （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

8 . It is in the very village, ________ Mary was born 35 years ago, ________ she will build her first school, ________ inspires everyone to help her.

A．where; that; which	B．that; that; that
C．that; when; which	D．where; when; that

9 . Being younger and thinner, she can eat super big hamburgers, ______ I have to give up in the interest of my weight.

A．that

B．who

C．whom

D．which

10 . It is the discovery of Cao Cao’s tomb, _____ was made in Anyang, Henan province, ____ has received widespread attention．

A．where; which	B．where; that
C．that; which	D．which; that