1. Do you remember meeting her at the party?
2. Please remember to lock the door before you leave the office. - Correct
3. I forgot to turn off the lights when I left my house today.
4. I shall never forget seeing the Royal family in London. - Correct
5. Staying fit means exercising regularly. - Correct
6. I'm sorry, I didn't mean to Interrupt your conversation. - Correct
7. The children were trying very hard to solve the difficult maths problems.
8. Try listening to classical music. It will relax you. - Correct
9. Richard stopped to study and turned on the TV. - Correct
10. While I was on my way home I stopped buying some bread. - Correct
Ответ: meeting, to turn, to solve