Вопрос по английскому языку:

Заполните каждое предложение глаголом в правильной форме
Complete each sentence with a verb in the correct form, - ing or to...
1. Tom agreed ....... me with the work.
a) to help b) helping
2. They recommend ......... insurance with the product.
a) purchasing b) to purchase
3. He managed ........ the job on time.
a) finishing b) to finish
4. They mentioned ........ a new car last week.
a) buying b) to buy
5. I really enjoy ....... new skills.
a) to learn b) learning
6.They guarantee ......... the work before 5 o'clock.
a) to finish b) finishing