| 1. 难度：中等 | |
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The computer is useful invention in the modern world. A. a B. an C.the
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| 2. 难度：中等 | |
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March 8th is Day. A. Woman's B. Women's C. Womans'
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| 3. 难度：中等 | |
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July is the month of the year. A. fifth B. seventh C.sixth
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| 4. 难度：中等 | |
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Tom was born March 3rd, 1985. A. on B. of C. at
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