当朋友对你说“How are you?”你回答:A.Fine, thank you. B.I’m ten.C.How are 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.