Here are the completed sentences using gerunds:

1. They’re interested in learning English.
2. My mother enjoys listening to classical music.
3. Would you like to see a movie rather than see a play?
4. Her daughter prefers drinking orange juice to drinking apple juice.
5. Cycling to school every day is very healthy.
6. Playing sports is good for developing your height.
7. We’re keen on going boating around the lake.
8. Kien spends 15 minutes doing exercise every day.
9. He always brushes his teeth after having meals.
10. The storm stopped them from growing trees last week.