题目内容
16、The professor can hardly find sufficient grounds?? his argument in favor of the theory.
A. which to base on B. on which to base
C. to base on which D. which to be based
试题答案
16、B
解析：while 表示 “尽管; 虽然”，引导让步状语从句。句意：尽管我能充分理解你的观点，但是我也赞同Michael的看法。
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The professor can hardly find sufficient grounds his argument in favor of the theory.
A. which to base on B. on which to base
C. to base on which D. which to be based
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