Сделать : put the verbs in brackets into future simple or present simple. 1)if )new fuel,/pollute) the air 2)when ),we ) to the park. 3)if he )a lot of money,he )a computer. 4)if you ) more,you ) better. 5)if ) lucky , ) on a holiday to the moon one day
If people invent new fuel, cars will not pollute the air.
When John comes we shall go to the park.
If he has money, he will buy a computer.
If you exercise more, you will feel better.
If we are lucky, we shall go on a holiday to the moon one day.