----How do you deal with disagreements between the company and the customers?----They key____ the problem is to meet the demand ___by the customers.
Sam enjoys ______ stamps.And now he has 226 of them.
He has ______ friends.He always keeps himself alone at home.
Children under sixteen are forbidden to see such films _____ bad for their mental development.
I have been keeping that photo _______ I can see it every day, as it always reminds me of my university days in London.
.— Could you please tell me ______? — It’s next to the post office.