摘要：(2010·吉林实验中学高三一模)He gave us another piece of advice, of great help to the research work. A. which I think is B. which I think it is C. I think which is D. I think it is
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（2010·吉林实验中学高三第二次模拟） 20. There ____ a lot of visitors in his house , he has no time to talk with you.
A. have B. is C. are D. being
查看习题详情和答案>>（2010·吉林实验中学高三第二次模拟） 36. Measures have been taken to solve the problem, but it may be some time ____ the situation improves.
A. since B. when C. unless D. before
查看习题详情和答案>>（2010·吉林实验中学高三第二次模拟） 28. Not far from the club , there was a garden, ____ owner seated in it playing bridge with his children.
A. whose B. its C. of which D. in which
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