—How clean the room is! —Yes,I am sure that someone _______ it.
--- Did Mike finish _________ his work?--- Yes, he finished it very quickly, and he did _________ work.
--- Does Susan like singing?--- Yes, she does. But she prefers __________ to _________.
--- Do you like your Maths teacher?--- No, he always makes us _________ a lot of homework.
--- Can you ________ time to bring a cup to me?--- Of course I can. Do you mean the cup ________ a picture of a dog on it?
---Who is _______old man in _________ brown coat over there?---Oh he is Mr. Green, he is from France.