9.
Choose the correct sentence.
1. a. I play on the swings yesterday.
b) played on the swings yesterday.
2. a. Did you buy an ice-cream?
b. Did you bought an ice-cream?
3. a. Lumpy not ride a pony.
b. Lumpy didn't ride a pony.
4. a. Did you go to the park?
b. Did you went to the park?
5. a. Yesterday I go to school.
b. Yesterday I went to school.
6. a. Cave people lived in caves.
b. Cave people lives in caves.​