I have problems _______many things. For example, I have problems ________ learning Maths well. 
#50382
A
with, in
B
about, with
C
in, with
D
in, about
推荐题目
What are you doing _____ vacation?
#48594
A
for
B
in
C
on
D
at
---Where is your father? ---He          to Shanghai    business.
#50469
A
has been ;on
B
has gone; for
C
has been;for
D
has gone;on