—You were brave enough to argue with Mr. Smith.      —Well, now I regret _______ that.
#88694
A
to do
B
to be doing
C
to have done
D
having done
推荐题目
Every minute is made full _______ of _______ our lessons well.
#89931
A
to use; study
B
use; studying
C
use; to study
D
used; studying
If you can buy a person’s friendship, it’s not worth _____ .
#96748
A
having
B
being has
C
to be had
D
of being had