用所给单词的适当形式填空。

1. He told us _____ (walk) _____(quiet) so that we did not _____ (frightened) the birds.

2. Eddie, I'm going _____ (birdwatch) at the market. What about you?

3. Vane has a _____ (gold) coat.

4. Are there many _____ (live) areas for pandas now?

5. If you eat _____ (little) and exercise _____ (much), you can become healthier.

6. Everyone should do sth to protect the _____ (endanger) animals and help them out of _____ (danger).

7. How often do you go to the cinema? _____(one) a month.

8. A lot of _____ (tour) go to Zhalong to watch birds every year.

9. The doctors are taking _____ (act) to save the dying people.

10. Our teachers often tell us the _____ (important) of being an honest man.

11. We are busy _____ (get ) ready for our lessons.

12. Jack didn't take his subjects _____ (serious), so he failed to pass the exam.

13. Jane writes _____ (careful) in our class.

14. How _____ (heavy) it is raining!

15. We are _____ (deep) sorry for this thing.