CET6

21. The two scholars worked at the task of writing a preface to the new dictionary for three hours ____last night.

A. at length B. in full C. on end D. in time

22. I can’t read the marks and notes Jim made in the margin. They are too____.

A.faint B. foggy C. transparent D. misty

23. A highly organized system of irrigation is ____Chinese agriculture.

A. typical of B. consistent with C. famous for D. subject to

24. Jack is very ____about wines.

A. aware B. knowledgeable  C. learned D. informed

25. As for Ann, I am not sure about her ____in Italian.

A. fluency B. clarity C. coherence D. excellency

编辑推荐：

2015年大学英语六级考试报考指南

2015年大学英语六级考试论坛交流

2015年大学英语六级考试词汇模拟练习题汇总一

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