You have to wear a helmet and a life jacket for protection, just ____ you fall into the water.
#32160
A
for
B
because
C
so that
D
in case
推荐题目
—When did he leave the classroom?—He left _____you turned back to write on the blackboard.
#80113
A
the minute
B
the time
C
until
D
before
— You look puzzled at the news.— Yes. I just can’t imagine _____ he could have done such a thing.
#31129
A
what
B
how
C
whether
D
Where
It was several minutes ____we realized what was happening-our dog was trapped in a newly-dug tunnel.
#30154
A
since
B
before
C
until
D
while