根据句意及括号内所给汉语提示填空。

1．No one knows why the dinosaurs             （消失）.

2．Fred doesn’t work as            （细心地）as his brother.

3．When his wife and two little children left him, he was very             （孤单地）.

4．The woman preferred the             （羊毛的）sweater to the cotton one.

5．She             （花费） a lot of money on books every year!

根据句意用括号内所给词的适当形式填空。（5分）

6．People enjoy Chinese food because it has different               (taste).

7．Although he didn’t want to go with Rose, he refused her               (polite)

8．The Chinese girls won the world Volleyball Championship again on November 15, 2003. We are                (pride) of them.

9．We hope you children grow happily and               (health).

10．Of all the subjects, which do you think is               (difficult) to learn.