教材回扣
Ⅰ.用本单元所学短语完成句子 1.If the bird is (让……出来) of its cage,it will certainly fly away. 2 The book (由……构成)different articles. 3.If we continue to destroy and waste the natural resources like this,we will (用光,用尽) them sooner or later.
答案:1.let out 2.is made up of 3.run out of