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I have been living in London for more than ten years, so I have ________ good knowledge of this city.
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/
B
the
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a
D
an
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Her sister is a nurse, so she always wears __________ uniform when she works.
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Do you know how to learn English well as _________ second language?
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 I think skiing is______ great fun. What _____fantastic time we are having!
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