1 . The team includes 30 scientists, most of ________ have overseas study experience. (用适当的词填空)

2 . The soldiers were tired and hungry, most of _____ had marched for a long time. (用适当的词填空)

3 . Yesterday 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

4 . Mrs. White is a woman of great experience,________ much can be learned.

A．she

B．from her

C．from whom

D．from which

5 . In 1963 the UN set up the World Food Program, one of_________purposes is to relieve worldwide starvation.（用适当的词填空）

6 . In the office I never seem to have time until after 5:30 p.m, ________ which time many people have gone home.

A．on

B．at

C．in

D．by

8 . The musicians were to play jokes on each other as well as play music, most of ________ was based loosely on the Beatles. （用适当的词填空）

9 . My partner often helps me with my homework, ________ which I am grateful.

10 . For many cities in the world, there is no room to spread out further,_________New York is an example.