1 . John invited about 40 people to his wedding, most of ________ were family members. (用适当的词填空)

2 . She brought her three friends to the party, none of ________I had ever met before. (用适当的词填空)

3 . Scientists have advanced many theories about why human beings cry, none of ______ has been proved. (用适当的词填空)

4 . The number of smokers, _________ is reported, has dropped by 17 percent in just one year. （用适当的词填空）

5 . He may win the competition, in ________ case he is likely to get into the national team. (用适当的词填空)

6 . Last winter, part of Britain was struck by snowstorms, from ________ effects most passengers in Heathrow were suffering a lot, especially those with children.

A．which

B．what

C．whose

D．that

7 . （2017新课标III卷）But Sarah, ___________has taken part in shows along with top models, wants to prove that she has brains as well as beauty. (用适当的词填空)

8 . On Sundays there were a lot of children playing in the park, ________ parents sat together joking.

A．their

B．whose

C．which

D．that

9 . ________ is known to us all is that the old scientist, for ________ life was hard in the past, still works hard in his eighties.

A．As; whom

B．What; whom

C．What; whose

D．As; whose