My brother wants ____ orange, not ____ orange juice.
— When will Mr.Brown be back to China ? — Sorry, I don’t know ________.
—I’m not sure ______there are living things on other planets or not . —Even scientists aren’t sure about it.
—I’m very tired these days because of hard work. —Why not ______music ? It can make you ______
—Don’t ______the rubbish everywhere . It’s our duty to protect the environment. — I’m sorry.I won’t do that again.
—who is the man over there ? Is it Mr.Wang ? —No, it _____be him .Mr.Wang is much fatter.