We don't know ___ to pay a visit to the old town.
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Oh,! We shouldn’t keep him waiting long, for he is not a person of ________.
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. His promise ________ he would give away half of the year’s income to the disabled turned out a lie, ________ made the public feel cheated.
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Only by communicating with each other more frequently ________ clear away the misunderstandings and solve the conflict.
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Knowing they couldn’t understand what I had said, I gave several examples and ________ I got my idea across.
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It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors ________ the wide spread of H1N1.
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