I regret that wonderful exhibition last week. [ ]A. not to see B. having not see
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![I regret that wonderful exhibition last week. [ ]A. not to see B. having not see](/pic/43_615239.jpg)
I regret ____ that wonderful exhibition last week. [ ]A. not to see
B. having not seen
C. to not see
D. not having seen
试题答案
D