Ответ:
- 1. We need to make a cake, but we don't know how to do it.
- 2. I need to eat chocolate, but it isn't very good for you.
- 3. I need to pass the marks I get in maths. Mine are terrible.
- 4. Watching TV late at night makes you tired the next day.
- 5. I'm angry with my neighbour for coming to my party.
- 6. Spending time with friends is really good fun.
- 7. Jack didn't want to play with me.
- 8. Chatting with friends is really good fun.
- 9. My best friend spends all her free time going to the shops with the new girl in our class.
- 10. Making a lot of time indoors is quite boring.
Краткое пояснение: Выбор между герундием (глагол с -ing) и инфинитивом (to + глагол) зависит от глагола, который им управляет. Некоторые глаголы требуют после себя инфинитив (например, 'need to'), другие — герундий (например, 'enjoy doing'), а третьи могут употребляться с обоими формами, иногда с изменением значения (например, 'stop doing' vs 'stop to do'). В данном упражнении выбор определяется контекстом предложения и типичными сочетаниями глаголов.