It's important______the piano well.
#43514
A
of him to play
B
for him to play
C
of him playing
D
for him playing
推荐题目
What are ____________?
#44150
A
this
B
it
C
these
D
that
 "All____present and all ____ going on well."our monitor said. 
#86206
A
is; is
B
are; are
C
are; is
D
is; are
Mail or gifts posted by companies to customers ________ advertising.
#86055
A
are another
B
is the other
C
are other
D
is another