—Robert is indeed a wise man.—Oh, yes. How often I have regretted ______ his advice! 
#90294
A
to take
B
taking
C
not to take
D
not taking
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—What did you do when you saw the girl     in the flood? —I did what I could     .
#96030
A
struggling; to pull her up
B
struggle; pull her up
C
struggling ; to pull up her
D
struggle;pull up her