-What trouble do you have when you learn English?- __________the grammar in a right way. 
#49768
A
Use
B
To use
C
Using
D
To using
推荐题目
I’m going to ask Sam _________ the flat.
#49500
A
clean
B
cleans
C
cleaning
D
to clean
She wanted to find a cleaner room ______.
#48435
A
to live
B
to live in
C
living
D
lives in
There 's a teacher  _____ with your parents in the teachers' office.
#49948
A
is talking
B
talks
C
to talk
D
talking
 Hainan Island is a good place_____.
#49976
A
go sightseeing
B
go sightsee
C
to go sightseeing
D
to go sightsee