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1.have you ________ been to Beijing? No _____. 2.I have ______ finished my work. 3.I have finished my work_______. 4.Have you finished your work______? 5.She has taught English _____ 10 years. 6.He has worked in the factory ______1 year ago. 下载地址：http://files.eduu.com/down.php?id=52674 (责任编辑：admin) |