【C4】A．unconsciousB．unawareC．unfamiliarD．unknown

ONE DAY in February 1926 an unknown American writer walked out of a New York snowstorm a

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A．A sense of frustration.B．Haunted by the unknown things.C．Confident but moody.D．Succe

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The number of teachers in this school（) unknown.A. areB. is beingC. isD. are being

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【C12】A．unconsciousB．neglectC．worriedD．curious

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This passage mainly tells usA．a story how a previously unknown Leonardo was discovered.B．s

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He was hit on the head by a piece of iron and was knocked ______ .A.unconsciousB.subconsci

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Johnson was______unknown before running for the presidency.A.visiblyB.visuallyC.vertically

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