Thomas Malthus was an Anglican clergyman.A．YB．NC．NG

Lisa Perez was always optimistic during the period of her unemployment.A．YB．NC．NG

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Gossips are always with an evil intention, and the stories are always untrue.A．YB．NC．NG

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It was early farmers who developed calendars.A．YB．NC．NG

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The Greenwich Mean Time was set up in 1884.A．YB．NC．NG

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The young man was very proficient at operating computer.A．YB．NC．NG

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The economic effect of Gulf War was of significance to later wars.A．YB．NC．NG

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His jokes often led to violence when he was a boy.A．YB．NC．NG

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