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.