1. Was there a book on the table? Yes, there was. There was a book on the table.
2. Were there any apples in the fridge? No, there weren't. There weren't any apples in the fridge.
3. Was there a red pen in Mary's pencil case? Yes, there was. There was a red pen in Mary's pencilcase.
4. Was there a Cristmas tree at your school? Yes, there was. There was a Cristmas tree in my school.
5. Was there a postcard in the letter? No, there wasn't. There wasn't a posrcard in the letter.