2. the driver didn't stop after the accident.

3. You didn't arrive late.

4. She didn't put on her helmet.

5. we didn't leave the house at seven thirty.

6. He didn't phone his girlfriend last night.

2.

3. Boris and Maxim saw the pedestrian.

4. Boris and Tanya didn't turn corners fast.

5. Tanya and Maxim didn't stop at the junction.

6. lara turned corners fast.

7. Lara and Boris stopped at the junction.

8. Tanya didn't see the pedestrian.

3.

3. he didn't wear his jeans.

4. he had his breakfast.

5. he didn't play computer games.

6. he had a cola.