用所给单词的适当形式填空。

1. They are against _____ (play) football on the street.    

2. For some animals, zoos are not the best places _____ (live) in.    

3. Have you ever seen a zoo that was _____ (suit) for animals?    

4. The parrot should _____ (give) food twice a day.

5. He ate noisily and greedily. I tried hard not to be _____ (disgust) by his manners.