СРОЧНО ( на ручку не смотрите)

1. Mike will help us if he has time tomorrow.

2. People would live in a better environment if they didn't pollute it.

3. Henry would have done the task if he had borrowed the book from the library.

4. Peter would play chess tomorrow if he went to special classes.

5. William would have gone to the cinema last week if he had bought tickets.

Ответ:

1. has (без will)

2. didn't pollute

3. had borrowed

4. would play

5. would have gone