为了节省石油资源和有效地减少汽车尾气对环境的污染，我国正在逐步推广使用在汽油中加入适量乙醇作为汽车燃料（车用乙醇汽油）．乙醇的化学式是C₂H₅OH，在物质分类中属于____化合物（填“无机”或“有机”），乙醇中碳元素和氢元素的质量比是____ ，乙醇燃烧时生成二氧化碳和水，写出该反应的化学方程式____．

① The shoes are 20 yuan.  ____     A.

② The shoes are 10 yuan.  ____     B.

③ The skirt is nice. ____     C.

④ The shoes are expensive.  ____     D.

看图片，选句子。

A. There are lots of grapes.    

B. It looks like a tiger.     

C. I fell off my bike.

D. We went to Turpan last Saturday.    

E.  Labour day.  

F. Look at my pictures.

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