15. Complete the following sentences using the prepositions in, on, at.

Fill in the Prepositions:

• 1. We are planning a chess competition. It will be on Sunday, at 10 o'clock in the morning.
• 2. Could you wait for me a little? I'll be there in a minute!
• 3. I was born on 23rd May.
• 4. At Christmas, all our relatives usually have a party at our place.
• 5. Why don't we meet at lunchtime? – Good idea.
• 6. In 10 minutes he decided to phone the leader of the school camping team.
• 7. They decided to start the hiking trip on Saturday.