Зробити у герундії. ! 30 ів

1. stop (talk) and begin (write). keep (work)!
2. he likes (swim).
3. he likes (swim) in summer.
4. i will never forget (buy) my first car.
5. i will not forget (buy) bread.
6. she was angry at (be) left alone at home.
7. it is difficult (be) a doctor.
8. she is good at (drive).
9. it is good (hear) that.