题目内容
28. This printer is of good quality.If it ____ breakdown within the first year, we would repair it at our expense.
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29. They ____ two free tickets to Canada, otherwise they’d never have been able to afford to go.
30. It is high time we ____ home.
31. It is strange that you ____ say such a thing.
32. ---"Where have you been?" ---"I got caught in traffic; ____ I would have been here sooner."
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