当有人对你说Happy birthday to you!时,你应说:A.You too. B.The same. C.Thank you.
() _____ are you reading in the classroom?
()Shall we go to the park _____ to the zoo?
() We cannot live _____ air.
()_____ computer is it? May I _____ it?
()I saw _____ boy walking across _____ street today.