—Mum,it’s late.Why are you still here?—Dad hasn’t come back yet.I ________ for him.A.am waitingB.was waitingC.waited
—_______ is the young man? —He is Kate’s brother.
— Hi, Li and Lucy, are you classmates? — Yes, _____.
Let ______ have a look.
—What is twelve and five? —It’s ________.
Tom _________ my friend. Tom’s two brothers _________ my friends too.