1. I can't help laughing when Alan tells jokes.
2. Alice doesn't feel like going to the beach today.
3. He failed to complete the task.
4. The boy managed to cross the river.
5. I hate doing nothing!
6. Clara suggested flying a kite after lunch.
7. Paul enjoys playing his guitar.
8. I promise to return the book to you by Thursday.
9. You seem to be tired.
10. I avoid driving at high speed.
11. Jim practises skating every day.
12. I prefer drinking coffee to drinking tea.
13. Do you mind closing the window?
14. I refuse to cooperate with you.
15. I hope to improve my English.