Many people can't learn any lessons from the mistakes they've made _____ they get hurt somehow.
#31589
A
whether
B
unless
C
if
D
as
推荐题目
I like to listen to music ______ I’m having a walk in the evening.
#33673
A
since
B
after
C
while
D
before
Schools in the east tend to be better equipped, ____ those in the west are relatively poor.
#32277
A
As
B
While
C
When
D
But
As parents, we should try to understand _______ our children’s real interests lie instead of blaming them for bad marks．
#31654
A
what
B
which
C
where
D
how
--Can’t you stay a little longer? I really want to talk more with you. --Me, too. ________ I have to get home before 10 at night.
#33246
A
But
B
Since
C
And
D
For
I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.(2008·北京)
#30452
A
before
B
since
C
till
D
after