I had some trouble____ complete sentences in learning English.
#49509
A
makes
B
to making
C
making
D
to make
推荐题目
This piece of music is worth __________.
#49920
A
to listen
B
to listen to
C
listening
D
listening to
I’m really looking forward to J.K. Rowling’s new book ________. 
#50644
A
coming out
B
coming on
C
putting out
D
putting on