В каждом предложении имеются ошибки – неправильная форма глагола или сказуемое стоит не в том времени. Исправь их –
Например: He go to school. - He goes to school.
1. He buying an adventure book every month.
2. I am thinking you left yesterday.
3. Pete fights fire now.
4. We is knowing it now.
5. My friend become a postman last year.
6. I often sees this movie.
7. I were at the cinema last week.
8. It was hot and I go home.
1. He buying an adventure book every month.
правильно buys
2. I am thinking you left yesterday.
правильно think
3. Pete fights fire now.
правильно is fighting
4. We is knowing it now.
правильно knows
5. My friend become a postman last year.
правильно became
6. I often sees this movie.
правильно see
7. I were at the cinema last week.
правильно was
8. It was hot and I go home.
правильно went