Make the sentences indirect

1) John said : "I met them at the airport yesterday"

2) Mother said to us : "Don't go out before I return"

3) "Is the river Volga in Russia?" Asked the Frenchman.

4) "Are you playing volleyball, girls?" said Ann "I did't know that you liked it"

1. John said that he had met them at the airport the day before.

2. Mother told us not to go out before she returned.

3. The Frenchman asked if the river Volga was in Russia.

4. Ann asked the girls if they were playing volleyball and that she hadn't known that they had liked it.