①氧气 ②氮气 ③烧碱 ④生石灰 ⑤碘酒 ⑥乙醇汽油
⑴____ A. teacher B. great C. please D. eat
⑵____ A. school B. good C. book D. football
⑶____ A. cousin B. about C. trousers D. out
⑷____ A. window B. flower C. now D. down
⑸____ A. her B. teacher C. fattier D. flower