I won’t call you, ______ something unexpected haappens.
#57592
A
because
B
While
C
unless
D
while
推荐题目
 Mary sings English songs well and ______.
#55513
A
Jane does too
B
either does Joes
C
so Janes does
D
so does Jane
I will tell him ___________ I see him. 
#56654
A
after soon
B
soon as
C
as soon as
D
till
It’s _____ hard problem for the twins that ____ of them can work it out.
#58003
A
so; neither
B
such a; neither
C
so a; neither
D
such a; none