Gerund/to+infinitive/infinitive without to

The pizza company promised ___ within half an hour.

• to deliver
• deliver
• delivering

He's interested in ___ , so I usually buy him recipe books for his birthday.

• to cook
• cook
• cooking

I avoid ___ too much convenience food.

• buy
• to buy
• buying

Kids must ___ their meals before they leave the table.

• finish
• to finish
• finishing

Can you imagine ___ in a Paris cafe drinking a perfect cup of coffee?

• sit
• to sit 
• sitting

We need ___ some drinks before we get on the train.

• buy 
• to buy
• buying

She is interested in ___ the Internet.

• surf
• to surf
• surfing

I would like ___ a cup of tea.

• have 
• to have
• having

They can ___ German.

• speak
• to speak
• speaking

She decided ___ the car.

• sell
• to sell
• selling