1 . I came across an old friend from ________ I had parted for many years. (用适当的词填空)

2 . I stay in a dormitory with three other girls, all of _______ are kind and nice．(用适当的词填空)

3 . There are two buildings, the larger of ________ stands nearly a hundred feet high.

A．who

B．whom

C．which

D．that

4 . Thanks to your generous help, without ________ I wouldn’t have made such great progress.（用适当的词填空）

5 . Good advertising, ________ people attach positive meaning, can contribute to the sales of a product.

A．to which

B．of which

C．for which

D．on which

6 . He has three sons, all of ________went abroad for further education. (用适当的词填空)

7 . Previously, water quality in the Li River had suffered greatly from an increasing volume of tourists, many of _________ frequently threw garbage into the river. (用适当的词填空)

8 . I would rather my brother were in Beijing, in ___________ case he would accompany me to the bookstore. (用适当的词填空)

9 . These terraces also provide a perfect environment for birds and fish, some________ feed on insects that can harm the rice crops.
这些梯田也为鸟类和鱼类提供了绝佳的栖息地，其中的一些以危害水稻的昆虫为食。

10 . These terraces were built by the local Zhuang and Yao people, ________ whom Guangxi is home. （用适当的词填空）