You will fail your next exam ______ you start to work hard at your study now.
#58175
A
because
B
unless
C
so
D
if
推荐题目
I ______ believe it _______ I see it with my own eyes.
#58288
A
won’t; and
B
will; but
C
will; until
D
won’t; until
Bob is young, _______ he knows a lot. 
#58536
A
because
B
so
C
but
D
unless