Water,which seems so simple and common,is ________ makes life possible.
—Hi, is that Peter Brown? —Sorry. You _________ the wrong number.
Tom ____ be playing basketball. I saw him in the classroom two minutes ago
________ the beautiful gift, Alice let out an _______ shout..
Supermarkets are supplied with _________ red lucky gifts at the Spring Festival.
Don’t try to cheat the taxman(税务人员); you’ll never ______it.