The professor could hardly find enough grounds on which to base his arguments the new theory.
A. in honor of
B. in favor of
C. in case of
D. in memory of
网友回答
A. in honor of
(答案→)B. in favor of
C. in case of
D. in memory of
解析：考查词组辨析：A. in honor of 为了庆祝B. in favor of支持C. in case of 以防万一D. in memory of为了纪念，句意是：教授很难找到足够的基础来支持他的新理论。