Where is he going ______ vacation?
#48207
A
at
B
for
C
in
D
to
推荐题目
We have to go to that place ______bus. 
#47602
A
by
B
in
C
on
D
takes
 Tom has much difficulty _____Chinese so he often asks me ______help.
#51113
A
understanding; for
B
understanding; of
C
to understand; for
D
to understand; for