II. Underline the correct item. (11 points) 1) His parents let him to go / go to the party. 2) They decided selling / to sell their old car. 3) Joan spent all day to shop/shopping. 4) I'm busy to do / doing my homework at the moment. 5) I'd love to visit / visiting India one day. 6) Penny loves visiting / visit museums. 7) His teacher made him apologise / to apologise for his bad behaviour. 8) Jane isn't used to get up / getting up early in the morning. 9) The boys went hiking / to hike in the woods yesterday. 10)Nikos agreed buy / to buy my old laptop. 11) Swimming / To swim keeps you fit.

Решение:

1. His parents let him go to the party. (Глагол 'let' требует инфинитива без частицы 'to').
2. They decided to sell their old car. (Глагол 'decide' требует инфинитива с частицей 'to').
3. Joan spent all day shopping. (Конструкция 'spend time doing something' требует герундия).
4. I'm busy doing my homework at the moment. (Конструкция 'be busy doing something' требует герундия).
5. I'd love to visit India one day. (Глагол 'love' после 'would' требует инфинитива с частицей 'to').
6. Penny loves visiting museums. (Глагол 'love' требует герундия).
7. His teacher made him apologise for his bad behaviour. (Глагол 'make' требует инфинитива без частицы 'to').
8. Jane isn't used to getting up early in the morning. (Конструкция 'be used to doing something' требует герундия).
9. The boys went hiking in the woods yesterday. (Конструкция 'go + -ing' обозначает занятие).
10. Nikos agreed to buy my old laptop. (Глагол 'agree' требует инфинитива с частицей 'to').
11. Swimming keeps you fit. (Герундий как подлежащее предложения).

Ответ: go; to sell; shopping; doing; to visit; visiting; apologise; to getting up; hiking; to buy; Swimming.