根据首字母或汉语提示写单词。

1. A dog is an a_____, so is a cow.

2. I can't do the work myself, can you g_____ me a hand?

3. Dan is a l_____ boy, he never does the cleaning.

4. Elephant is a_____ extinct in China.

5. You can k_____ the book for two weeks, but you must give it back.

6. How many _____ (出口) are there in the cinema?

7. Tigers are _____ (危险) animals.

8. Keep the window _____ (开着). It's too hot.

9. Why is she standing _____ (静止的)?

10. I am very _____ (惊奇的) at the news.