---Miss Hu, I have trouble __________ grammar and __________ the text. 
#55875
A
with; to understand
B
on; in understanding
C
with; understanding
D
on; to understand
推荐题目
 — Look, the light in the living room is still on. —Oh, I forgot _______.
#56414
A
turning it off
B
turn it off
C
to turn it off
D
having turned it off
 He used to ____late, but now he is getting used to _______early.
#52847
A
get up, get up
B
getting up , get up
C
get up, getting up
D
getting up , getting up
What      you      he is a true friend?
#61658
A
make; think
B
makes; think
C
make; to think
D
makes; to think