________ is known to all is that effective measures should be taken to deal with the problem of the overexploitation of our resources.
#67275
A
What
B
It
C
As
D
Which
推荐题目
I think the biggest problem in banning smoking is ______ people can buy cigarettes easily.
#67054
A
that
B
whether
C
where
D
how
---When can we use this lift? ---Not until it____________ next week.
#41047
A
will repair
B
is repaired
C
will be repaired
D
repairs
English is a language shared by several diverse cultures, _________ uses it differently.
#66616
A
all of which
B
each of which
C
all of them
D
each of them
While previewing his lessons, the little boy will make a question mark ________ there is a question.
#67602
A
where
B
when
C
because
D
which