摘要：选C. 考查非谓语形式.make在主动语态中省 “to .
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With his attention________on the shops along the roadside，he knocked an old man down while riding to school.
A concentrating B．concentrated C．to concentrate D．concentrates
答案 B
解析 考查词组，故选B项。
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She wore a ______ face when she saw what happened. 【江苏省泰州市2010―2011学年度高三调研考试】【非谓语动词】
A. surprising B. surprise C. surprised D. surprisingly
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Seeing the soldiers well _____for the fight,the general nodded with satisfaction. 【陕西西安一中2010-2011学年高三下学期综合冲刺卷】【非谓语动词】
A.prepare B.preparing C.prepared D.to prepare
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