Ответ:

Предложения с ошибками:

1. I have got a cat.

2. He like to eat fish and drink milk every day.

3. Our flat is rather smal so a cat is the best variant for us.

4. I love when vasya is purring with pleasure.

Объяснение:

Правильно:

1. I've got a cat.

2. He likes to eat fish and drink milk every day.

3. Our flat is rather small so a cat is the best variant for us.

4. I love when Vasya is purring with pleasure.

(здесь еще, возможно, is purring нужно заменить на purrs, тогда:

I love when Vasya purrs with pleasure.

P.S.

По всей видимости все предложения взяты из этого текста:

https://kopilkaurokov.ru/angliiskiyYazik/uroki/tiekstdliachtieniiatohaveapetisaverygoodthing