The problems      at the meeting tomorrow are really hard to solve.
#4945
A
discussed
B
to discuss
C
to be discussed
D
discussing
推荐题目
It is the second time you _________ such a mistake.
#4524
A
will make
B
have made
C
made
D
had made
 I prefer _______ to __________ in my spare time.
#4699
A
singing… dancing
B
sing… dance
C
to sing... dance
D
to sing…dancing