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—Look at the sky! What is it? —Oh! _______UFO is landing on the ground.
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A
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An
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The
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Do you have _______ i Pad5?
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new bridge has been built over    Changjiang River in Huangshi.
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It’s going to rain.You should take　　　umbrella.
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It is _______ unusual thing for us to find ________ UFO.
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Her sister is a nurse, so she always wears __________ uniform when she works.
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