It is difficult for us to learn a lesson in life _____we’ve actually had that lesson. 
#79988
A
until
B
after
C
since
D
when
推荐题目
You’d better give the task to _____ can finish it ahead of time.
#34079
A
whomever
B
whoever
C
anyone
D
no matter who
My father asked me ______ with me.
#32724
A
what the matter is
B
what the mater was
C
what is the matter
D
what was the matter