______ you keep trying till the end, you will never know how strong you are!
#55142
A
Although
B
If
C
Unless
D
Because
推荐题目
Bob promises to join in the football match ______ he has to help his parents on the farm.
#58516
A
if
B
as
C
unless
D
when
—Would you like to go to see Liu Qian’s magic?--I’d like to, _____ you don’t want to go alone.
#58238
A
before
B
after
C
until
D
if
---How about going out for a walk with us? ---I wish I could, I have to finish my homework first.
#57090
A
so
B
and
C
but
D
or