Why not practice your _________English in _________ English-speaking country?
If it _______ tomorrow, we will go mountain climbing. A.isn’t rain B.don’t rain C.doesn’t rain
—May I use your bicycle, Lily? —Sure, _______. A. here you are. B.you can ask Bill C.you can’t
—Would you please _______ near the river? —Oh, sorry, I won’t. A. not play B.don’t play C. not to play
—Must I take the medicine every day? —No, you _______. A.must B.mustn’t C.needn’t
—Excuse me, can you do me a _______? —Sure. A.hand B.help C. favor