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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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The Wal-Mart (China) Investment Co., Ltd. expressed "sincere apology" to affected customers and _____________ with authorities' investigation into the cheating till now. 【福建省漳州实验中学2011届高三毕业班高考模拟试题】【动词时态】
A. has been cooperating B. had cooperated
C. cooperates D. cooperate
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Justin a book about his adventures in Tibet.I hope he can find a good publisher when it is finished.【黑龙江省鸡西市第一中学2010-2011学年度高三第二次模拟考试】【动词时态】
A.was writing B.is currently writing C. has already written D.wrote
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