题目

新概念英语1册的题目如下,
I had sold the ticket when she came.(改否定句）
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She had sung a song to us before shedanced.(改为否定句）————————————————————
They began to climbed the mountain after they had bought all the food and drink(否定）
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By 10:00 a.m,I had been very hungry（改为一般疑问）
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Lucy had already completed the project when I arrived.（改为一般疑问）
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By the time he got to the airport,the plane had taken off.（改为一般疑问）
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He had broken his arm when I saw him.(对划线部分had broken his arm 提问）
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When he had read the note,he ate it.(对划线部分 ate it提问）
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Tack didn"t go to the cinema because he had seen the film.(对划线部分 because he had seen the film提问）
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We had the toys for ten years before we gave them to the child.(对划线部分for ten years提问）
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提问时间：2020-10-21

答案

I hadn't sold the ticket when she cameShe hadn't sung a song to us before shedanced.They didn't begin to climbed the mountain after they had bought all the food and drinkHad you been very hungry by 10...