Read the text and fill in the gaps with the correct form of the given words

Have you heard of a feedback sandwich?

Do you know that some people [ ] live without junk food? Some people believe that they will have an awful day without eating hamburgers or drinking coke. They prefer [ ] an order at the doorbell every evening instead of cooking a delicious healthy meal. As a result, they gain weight, have some problems with bones and become lazier. Psychologists say that the urban way of life has changed us dramatically.

Nowadays many fast food cafes offer free sandwiches in return for an online review. It's obvious that you can get a free cheeseburger or a pack of french fries as a substantial meal in New York cafes. The cafe's owners know that marketing and advertising [ ] crucial factors in a successful business.

John [ ] in New York for five years. Every Friday he [ ] to Big Jim's Burger cafe to have a meal with friends. They [ ] so rich and prefer spending less than $50 for dinner. At the end of the meeting, he types a short review on Google for this place. Later, John shows the review to a bartender and receives a free burger and a pint of beer.

But experienced people say that sometimes the owners give you discount coupons. Also, they organize special campaigns. For example, you may receive a free sandwich by spending more than $100 per meal in a restaurant. So, [ ] to read the terms of conditions before taking part in it.