1. ( Can/cans) she ( to play/play) ping-pong very well?
2. She never (play/plays) ping-pong and she (can/can't) do it very well.
3. The Lesson (begin/ begins) at 8. You (must/mustn't) be late.
4. If you are ill, you (must/mustn't) (to see/see) the doctor.
5. How well (can/can't) you (to swim/swim)?
2. Plays, can’t
3. Begins, mustn’t
4. Must to see
5. Can, swim