1 . In their class there are altogether 54 students, half of ________ wear glasses. （用适当的词填空）

3 . In our class there were 42 students, nearly 80% of ________ wear glasses. (用适当的词填空)

4 . The children, all of ____________ had played the whole day long, were worn out.

5 . Bill Gates, for ________ money isn't a problem, still lives a very simple life now. (用适当的词填空)

6 . The nursing home, located on a housing estate, has more than 150 senior citizens, some of __________ are over 90 years old. (用适当的词填空)

7 . The old lady has two daughters, one of ________ is working abroad. (用适当的词填空)

8 . The shopkeeper, from ________ the bread was stolen, refused to drop the charges. （用适当的词填空）

9 . The man, from ________ I learned the news, is an engineer of a construction company in Shanghai.（用适当的词填空）

10 . Still, when you start your journey of positive thinking, you shall meet wonderful new people, with ______ you can share positive attitude. (用适当的词填空)