Steps must be taken _________ this kind of disaster will never happen again.
#31148
A
so that
B
even if
C
because
D
as
推荐题目
They had no sooner arrived at the airport it was time to check in.
#32450
A
when
B
before
C
than
D
though
-Did you reach the US the next day? - No. Somehow . it was three days_______ I arrived there.
#30724
A
since
B
when
C
that
D
before
_______ your opinions are worth considering, the committee finds it unwise to place too much importance on them.
#33397
A
As
B
Since
C
Once
D
While
Liping works very hard at his lessons .He didn’t get the first place in the exam ,_______.
#80206
A
though
B
yet
C
however
D
although