_____ many times, he finally understood it. 
#94484
A
Told
B
Telling
C
Having told
D
Having been told
推荐题目
______to looking after her sick father for 2 years ,she badly needed a holiday.
#98500
A
Devoting
B
Having devoting
C
Having been devoted
D
Devoting herself
Victor apologized for ________ to inform me of the change in the plan.
#95339
A
his being not able
B
him not to be able
C
his not being able
D
him to be not able