Ответ:
1. I wasn't scared, but I was nervous.
2. I bought some new clothes.
3. You were young!
4. She started when she was only six.
5. What did you do on Saturday?
6. I didn't see you at the sports centre.
a. regular verb: start (started)
irregular verbs: to be ( wasn't/were), do ( did/didn't), buy (bought)
b. We form the past simple of regular verbs by adding -ed.
c. We make questions and negatives with do/does or did.