The problems_______ at the meeting tomorrow are really hard to solve.
#98509
A
discussed
B
to discuss
C
to be discussed
D
discussing
推荐题目
If ____ in, viruses can result in illness or even death.
#88250
A
breathe
B
breathing
C
breathed
D
to breathe
Have you considered how weak humans are   a volcano, hurricane or earthquake?
#91850
A
comparing with
B
to compare with
C
compared with
D
having been compared with