--- Robert is indeed a wise man. ---Oh, yes. How often I have regretted his advi
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--- Robert is indeed a wise man.
---Oh, yes. How often I have regretted_______his advice!
A. to take B. taking C. not to take D. not taking
试题答案
D
解析:
regret doing 表示为做了谋事而后悔，本题同时又表示否定。