1. What's the matter with you? a. They went there by train.
2. What did the doctor say? b. Yes, I did.
3. What did you do yesterday? c. I have a cold.
4. Where did you go last night? d. I had a party with my friends.
5. How did they go to Shenzhen? e. I stayed at home.
6. How many ducks did you have? f. I had ten.
7. Did you go out yesterday? g. He asked me to drink lots of water.