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主动语态变被动语态 1:The students have done a lot of work this week

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时间:2024-08-17 11:03:32
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主动语态变被动语态 1:The students have done a lot of work this week【专家解说】:2. Our classrom must be k

【专家解说】:2. Our classrom must be kept clean. 3. English must be spoken in class. 4. Must all the exercises be done by me? 5. All the questions were answered by John. 6. Was the letter written? 省略