The four great Inventions Chinese people _______ paper
invented_____________ invented printing
ChinesepeopleChinese people _______ compass
inventedChinese people _______ gunpowder
Chinese people___________________bicycle
×didn’tinventNo, ChinesePeople____________________ Telephone
×Did Chinese people invent telephone
didn’tinventDid Chinese people invent airplane
No ,Chinese People didn’t invent airplane
Did Chinese people invent stem engine
No, Chinese people didn’t invent stem engineDid Chinese people invent the train
NO , Chinese people _________ _________The train
Did Chinese people invent light bulb
Do you know who is he
No, Chinese people didn’t invent light bulb
Did Chinese people invent auto- mobile
No, Chinese people didn’t invent automobile
一般过去时的构成 肯定式 否定式 疑问式 I washed
