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专题检测卷(六)
非谓语动词
（建议用时：20分钟）
1. (2013·青岛模拟) how mirrors produce image, we need to know what light does.
A. Understanding B. Having understood
C. To understand D. Understood
2. Leaning against the sofa in the living room, up at me, is a little brown girl, pretty in pink.
A. looks B. looking
C. to look D. looked
3. Doctors have said that as many as 50% of patients don’t take medicine .
A. like directed B. to be directed
