_____ is known to all is that effective measures should be taken to deal with the problem of the over-exploiting of our resources.
#31107
A
What
B
It
C
As
D
Which
推荐题目
published fifty years ago, his work still attracts much attention at present.
#32475
A
As
B
Though
C
Apart from
D
Despite
You may use the room as you like you clean it up afterwards.
#31417
A
so far as
B
so long as
C
in case
D
even if
________ hard you try，it is difficult to lose weight without cutting down the amount you eat.(2012·湖南)
#30448
A
However
B
Whatever
C
Whichever
D
Whenever
. He made a promise____he would achieve the success that his parents were looking forward to.
#34069
A
what
B
when
C
that
D
which
—Where’s that report? —I brought it to you ____you were in Mr. Black’s office yesterday.
#79989
A
if
B
when
C
because
D
before