九年級(jí)英語(yǔ)全冊(cè) unit 6 when was it invented section b（3a-self check）課件 新人教版-文庫(kù)吧
2025-06-02 13:54 本頁(yè)面
【正文】 cause sometimes a few people may ______ things which are nearly the same. It39。s hard to tell who came up with the idea first. Some inventions can also lead to other inventions some people _______ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _______ usually ________ more than one inventor when giving information about inventions. all of a sudden invent websitesdoubt mention Self Check 2 Rewrite these sentences using the passive voice. 1. Someone stole my watch. ______________________________________ 2. They used five eggs to make this big cake. _________________________________________ 3. When did they invent the personal puter?
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