Помогите сделать предложения в косвенной речи.

1.John said:I met them at the airport yesterday
2.He said:I shall come to the party if i am free tomorrow.

3.She said:I shall go to the cinema in the evening if i am not very tired.

4.My mother said to me:It wiil be difficult for you to get up tommorow if you don't go to bed at once.

5.Nina said:I like music and i listen to it every evening before go to bed.