A............................ is an electronic machine., Book, computer, tree, sun, A..................... keeps your food and water cold., TV, washing machine, refrigerator, computer, A.................................. is used to watch cartoons, Air condition, TV, cooler, washing machine, put true or false : The moon is a machine??, true, false, Machines are ............................... things, man - made, natural things

Exercise 1

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？