You will be late_______you leave immediately. 
#72164
A
until
B
if
C
or
D
unless
推荐题目
_____, the car stopped all at once.
#68137
A
Seeing a boy lying on the ground
B
On seeing a boy sitting on the road
C
The driver saw a boy standing on the road
D
The minute the driver saw a boy seated on the road
The problem ___ we should put off the sports meet ___ at the meeting yesterday.
#74097
A
whether, came up
B
if, came up
C
that, mentioned
D
if, was refered to