| 1. 难度：中等 | |
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Last week, Lily’s father bought her Mp4 as birthday present. A. a; a B. an; an C. a; an D. an; a
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| 2. 难度：中等 | |
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—Jack, is Maths difficult to learn in high school? —Sure. No subject can be learned well hard work. A. without B. through C. by D. With
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