Rewrite the sentences using the word given.Do not change the word.Use between two and five words, including the word given.

1.It isn't necessary to spend a lot of money to have a good time.

have

You don't have to spend a lot of money to have a good time.

2.Smoking is prohibited in this area.

must

You must not smoke in this area.

3.When Anna was four she was able to swim.

could

Anna could swim when she was four.

4.Who do you think is going to win the match tonight?

will

Who do you think will win the match tonight?

Are these sentences right?

Are there any mistakes?