________ you understand this rule, you’ll have no further difficulty.
#80259
A
Once
B
Unless
C
As
D
Until
推荐题目
Check your paper carefully to see ________ you have made any mistakes.
#33086
A
what
B
which
C
whether
D
that
One can’t do extreme sports _________ he or she has had some training.
#31217
A
if
B
unless
C
once
D
since
She stepped into the bedroom quietly_________she might wake up her roommates.
#80033
A
for fear that
B
so long as
C
on condition that
D
in order that
26. Parents always tell us not to stay ________ there is danger.
#79644
A
in which
B
the place where
C
at the place
D
Where