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2001年6月大学英语四级考试词汇附试题和答案免费下载，
in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
31. By the time he arrives in Beijing, we ________ here for tow days
2001年6月大学英语四级考试词汇附试题和答案
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