1 . I bought a great many books, __________ which I spent all my money that I had saved. （用适当的词填空）

2 . We must repair the desks, the legs of ______ are broken. (用适当的词填空)

3 . We must repair the desks, of ______ the legs are broken. (用适当的词填空)

4 . I have forty books, most of ____________are about Chinese history and literature. (用适当的词填空)

5 . In our school there are 50 students, half of __________ wear glasses. （用适当的词填空）

6 . The patient may have seen many skilled specialists, none of __________ can cure him of the rare disease. （用适当的词填空）

7 . There are 102 elements in nature, most of ___________ are metals. (用适当的词填空)

8 . He has written two novels, both of _________ have been made into television series. (用适当的词填空)

9 . Look at that building, the roof of ________ is red. (用适当的词填空)

10 . Mary took a few friends to my birthday party, none of ________ I was familiar with. (用适当的词填空)