Steps must be taken _____ this kind of disaster will never happen again.
#31513
A
because
B
even if
C
so that
D
as
推荐题目
David knocked at the door for nearly half an hour______Mary opened it, unwilling.
#30820
A
when
B
while
C
until
D
before
The seaside here draws a lot of tourists every summer. Warm sunshine and soft sands make ___________it is.
#34763
A
what
B
which
C
how
D
where
It has been many years since I was last in London_______I still remember something that happened during that visit.
#79761
A
and
B
for
C
but
D
as
Be sure to take a trip to the Wadesell． it's a long drive on a dirt road，it's well worth the trouble．
#30190
A
Only if
B
Now that
C
Even though
D
In case
Why not try your luck downtown, Bob? That’s __________the best jobs are.
#31761
A
where
B
what
C
when
D
why