1 . My classmates were friendly, with __________help I made great progress in my English learning. (用适当的词填空)

2 . 这些梯田是当地壮族和瑶族人修建的，广西就是他们的家园。
These terraces ________ by the local Zhuang and Yao people, ________ Guangxi is home.

3 . Many young people, most of ________ are well-educated, are struggling to find a job after graduation.（用适当的词填空）

4 . 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）

5 . There are sixty students in our class, all of _________ are working hard.（用适当的词填空）

6 . 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

7 . I have bought two ballpens，________ writes well.

A．none of them	B．neither of them
C．neither of which	D．none of which

8 . For many cities in the world, there is no room to spread out further, _____ New York is an example.

A．for which

B．in which

C．of which

D．from which