Don’t lose heart _________ you fail.
#31772
A
until 
B
as if 
C
unless  
D
even though
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