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句型轉換 I believe there are some aliens on Mars.(否定句 ) We all know … . Earth is being more and more crowded.( 賓語從句 )[來 Light travels faster than sound. Mrs. Zhu taught us… ( 賓語從句 ) We can store food in the fridge for a long time.(被動語態(tài) ) Could you tell me…? How long has he been like this?(賓語從句 ) Aunt Xu wondered… Is living on Mars safe?( 賓語從句 ) 二、翻譯句子 我希望我是個火星人。 我們都知道神州 6號已經 成功發(fā)射至太空。 你知道從地球到火星是否要花很長一段時間嗎? 這些動物將由機器人來照