What about       hiking       the mountains?
#50788
A
go, in
B
to go, to
C
going, in
D
goes, to
推荐题目
________to the zoo, turn left when you come to the crossroads.
#50685
A
Get  
B
Getting
C
To get  
D
To getting
Could you please ________ such a thing again?
#50730
A
not to do
B
don’t do
C
not doing
D
not do