_______ many times, he finally understood it.
#96770
A
Told
B
Telling
C
Having told
D
Having been told
推荐题目
When _______ about their opinion of the effect of modern equipment on their performance of tasks, many young people gave a positive response.
#95468
A
asked
B
asking
C
being asked
D
to ask
The flu is believed ________ by viruses that like to reproduce in the cell inside the human nose and throat.
#89170
A
causing
B
being caused
C
to be caused
D
to have caused
The performance of the host, _________ to please the audience and draw their attention, was greeted with a cold silence, however.
#88639
A
had intended
B
intended
C
intending
D
to intend