It’s important ________ the piano well. 
#70667
A
of him to play
B
for him to play
C
of him playing
D
for him playing
推荐题目
I don’t know ___________ the question.
#70356
A
what to answer
B
how to answer
C
to answer what
D
to answer how
It’s dangerous        after drinking wine.
#70943
A
driving
B
to drive
C
drive
D
drives