Ответ:

2. I studied French at school, but I didn't study German and Spanish.

3. The teacher helped me with the exercise, but she didn't help my friend.

4. Bill played basketball when he was young, but he didn't play football.

5. The secretary booked a table for lunch, but she didn't book a taxi.

6. We painted the living room, but we didn't paint the bedroom.

7. The shop assistant worked last Saturday, but she didn't work on Sunday.

8. I showed the photos to my sister, but I didn't show them to my brother.