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1、 The four great Inventions Chinese people _ paper.invented_ invented printing.ChinesepeopleChinese people _ compass.inventedChinese people _ gunpowder.Chinese people_bicycle. didntinventNo, ChinesePeople_ Telephone. Did Chinese people invent telephone?didntinventDid Chinese people invent airplane? N
2、o ,Chinese People didnt invent airplane.Did Chinese people invent stem engine?No, Chinese people didnt 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 didnt invent light bulb. Did Chinese people invent auto- mobile ?No, Chinese people didnt invent automobile.一般过去时的构成一般过去时的构成 肯定式肯定式 否定式否定式 疑问式 I washed I didnt wash you washedYou didnt wash He washed He didnt wash She washed She didnt washIt washedIt didnt washWe washedWe didnt washTheywashedThey didnt wash
