The text is too difficult. The explanation of our teacher will help make it easy ________.
#88517
A
to understand
B
to be understood
C
understood
D
understanding
推荐题目
With the computer's system _______. it can't be used at the moment.
#90599
A
updating
B
being updated
C
updated
D
to update
(2013·陕西,14)The witnesses ________ by the police just now gave very different descriptions of the fight.
#89225
A
questioned
B
being questioned
C
to be questioned
D
having questioned
—The light in the office is still on. —Oh, I forgot__________
#97860
A
turning it off
B
turn it off 
C
to turn it off
D
having turned it off
Could you show me the TV set you’d like________?
#88720
A
to have repaired
B
repairing it
C
to have it repaired
D
to repair it