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5保持書(shū)本整潔 。 。 助動(dòng)詞 be+動(dòng)詞的過(guò)去分詞。 Which language do people use all over the world? People use English all over the world. English is used all over the world. 主動(dòng) 被動(dòng) (a) change the sentences into passive voice often sends her some flowers. She ___________________________Jim. Some flowers __________________ Jim. 2. Tom bought two new cars yesterday. Two new cars _____________ yesterday. 3. You should hand in your homework on time. Your homework_______________________ on time. have seen the film before. The film________________________ before. 5. We have to finish our homework first. Our homework __________________first. let us go out last night. ___________________________ last night. (b) Check their answers. is often sent some flowers by are oft