1 . He has two sons, both of ____________ are workers. (用适当的词填空)

2 . He has many close friends, most of ________ are kind and generous.（用适当的词填空）

3 . The students, all of ______ had played the whole day long, were worn out. (单词的适当形式填空)

4 . 根据句子，填入适当形式的单词。
1. The place ________ interested me most was the Children’s Palace.
2. We came to a place to _________ they had never paid a visit before.
3. The room _______ Mr. White lives is not very large.
4. ____ is known to all, English is not very difficult to learn.
5. The foreign guests, most of________ were government officials, were warmly welcomed at the airport.
6. They asked about the things and teachers ______ they still remembered in the school.
7. Will you please show me the way to the only tall building _______ stands near the post office?
8. Next winter, ____ you’ll spend in Harbin, I’m sure, will be another exciting holiday.
9. Do you work near the building ________ colour is yellow?
10. He has made a wonderful discovery,________I think is of great importance to science.