_____ 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
______ there was no conclusive evidence, most people thought he was guilty.
#32649
A
When
B
As far as
C
As long as
D
While
_____________ well prepared you are, you still need a lot of luck in mountain climbing.
#32792
A
However
B
Whatever
C
No matter
D
Although
---- Could I take a few days’ leave, sir?----- I’m afraid you can’t ___________ the work is being done.
#31862
A
until
B
before
C
after
D
as
Mr. Li, leader of the team, always think of _______ he can do more for his teammates.
#32037
A
what
B
that
C
how
D
if