In order to make our city green, _______. 
#98611
A
it is necessary to have planted more trees
B
many more trees need to plant
C
our city needs more trees
D
we must plant more trees
推荐题目
There will be more than five proposals __________ at the meeting.
#96558
A
having been discussed
B
discussing
C
to be discussed
D
discussed
. –What’s the temperature today? --It’s 5 ℃ below _____. It is _____ cold.
#97642
A
freezing; frozen
B
frozen; frozen
C
freezing; freezing
D
frozen; freezing
By the year 1889, there were just 541 bison ________ in the whole of North America.
#97227
A
leaving alive
B
to leave alive
C
to be left alive
D
left alive
--- Aren’t you the chief editor? --- No, and I ______________.
#95222
A
don’t want to be
B
don’t want to
C
don’t want be
D
don’t want