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—Who’s that at the door?—          is the milkman.
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He
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It
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This
D
That
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Is ________ man’s ability to reason that sets him apart from other animals?      
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The aged are close companions, and many of       have known each other for decades.
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--How many eggs are still there in the fridge, Bill? ---_____.
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I took ＿＿＿for granted that he would believe in us.
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—Now that you like computers very much, isn’t it a good idea to get ______? —Well, I’d like to but I can’t afford that expensive a computer at present.
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