The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting
推荐题目
The words that we should pay attention to ___________ on the blackboard.
#44881
A
being written
B
are written
C
is writing
D
writing
---Look, what have you done?---Sorry. I think if I _____another chance, I’ll do it better.
#44400
A
give
B
will be given
C
am given
D
will give
Waste paper mustn’t _______. We should keep our environment clean.
#44420
A
throw away
B
thrown away
C
be thrown away
D
been thrown away
The 30th London Olympic Games ____________ on July 27th, 2012.
#44703
A
will be held
B
is held
C
was held
D
has been held