1 . A _______________(某个) girl fell in love with him.

2 . I found him ___________(埋头) in reading when I came in.

3 . For the more ________ (adventure) tourists, there are trips into the mountains with a local guide. （所给词的适当形式填空）

4 . They quarreled once, but they were quite _______ (友好的) now.

5 . The government would provide millions of dollars for research into _________ (可供替代的) energy sources. （根据汉语提示单词拼写）

6 . It is a program making science more ______ (可接近，易懂的) to young people.（根据汉语提示单词拼写）

7 . This T-shirt is made of high quality           (纯的) cotton.

8 . He was wearing a very          (严肃的) expression and I knew something was wrong.

9 . The smell of ______(新鲜的) bread and frying eggs filled the kitchen.

10 . Clear waters and lush mountains are as v________(宝贵的) as gold and silver. （根据中英文提示填空）