They plan   during the vacation.
#50114
A
to go hiking
B
to go hike
C
go hiking
D
going hiking
推荐题目
 I’ll invite you to my new flat as soon as I finish ________ it.  
#48590
A
decorating
B
decorate
C
to decorate
D
decorated
My mother often tells me        late for class.
#49749
A
not be
B
not to be
C
am not
D
not
Jane likes singing.We often hear her ______ after class. 
#49746
A
sing
B
to sing
C
sings
D
singing