Fill in the gaps with the correct preposition.

1. Our family spent a few days ___ the seaside.

2. There are many boats _____ hire at Yalta.

3. Hotels offer special rates if you travel ___ season.

4. You should book your tickets at least a month ___ advance.

5. For safety reasons, you should know rules for using mobile devices ____ board.

6. Please send me information _______ delay.

Our family spent a few days at the seaside.2. There are many boats over hire at Yalta.3. Hotels offer special rates if you travel in season.4. You should book your tickets at least a month after advance.5. For safety reasons, you should know rules for using mobile devices on board.6. Please send me information _______ delay.