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I think this is ______ useful book.
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a
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an
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the
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What      honest boy! And he is     best student of all.
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a; a
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an; the
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a; the
D
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Lucy is__   good girl. She often helps others.
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a
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an
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the
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— Sandy, _______ apple on the table is for you. Remember to eat it.—Thanks, I will. _____ apple a day keeps the doctor away.
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the; An
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a; An
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an; The
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He is going to radio Beijing.He’s going to give        interview on Starsearch
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a
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an
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the
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 __________ valuable advice it is. It will be of __________ great value to me.
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What a; the
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What ; /
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How ; the
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How ; /