Question

Напишите вопросительные и отрицательные предложения.
She had been at the airport for half an hour by the time the plane arrived.
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He was convinced that she had committed the crime.
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When Dad got back the babysitter had left.
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The schoolchildren had had lunch by the time I came in.
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He had eaten an apple before he got a phone call from her.

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Her little son saw a car which had broken down.
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This house was very quiet because everyone had gone to bed.
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Kate's brother had taken his final exam by the time she left school.
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The girl showed her teacher the article which her mother had translated.
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Den had done the homework by 6 o'clock.
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Answer 1

В вопросительных предложениях только вспомогательный глагол (had,has, have,can,must...) переходит в перед, а в отрицательных мы просто преписываем not (had not или же hadn't)