a.
2. listened didn't listen
3. studied didn't study
4. watched didn't watch
5. booked didn't book
6. downloaded didn't download
7. worked didn't work
8. played... didn't play
b.
2. What time did the match finish?
3. Did you like your birthday presents?
4. What university did your brother study at?
5. Did your parents arrive late?
6. Where did your friends live in Germany?
7. Did you cry at the end of the film?
