We should do what we can ___ the endangered animals.----Yes,it’s our duty them.
Let’s ________ football this Sunday.
— Does Mike like cats? — ________. He plays with his cat every day.
________. Can you tell me the way to the library?
— Are you ________, Mona? — Yes. Let’s buy some hamburgers to eat.
— ________ do they live? — In New York.