-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
This piece of music is worth __________.
#49920
A
to listen
B
to listen to
C
listening
D
listening to
She is kind. She is ready _______ the poor people.
#49595
A
helping
B
to help
C
to helping
D
not to help
How kind you are!You always do what you can______me.
#49506
A
help
B
helping
C
to help
D
helps