You will be late_______you leave immediately. 
#72164
A
until
B
if
C
or
D
unless
推荐题目
The man_____ was an old classmate of mine.
#73862
A
you just talked to him
B
who just talked to
C
you just talked to
D
whom you just talked
He’s _______as a “bellyacher” —he’s always complaining about something.
#72273
A
who is known
B
whom is known
C
what is known
D
which is known
Recently a terrible earthquake happened in the Southern Asian Area, _______ the people are still suffering.
#72652
A
from their effects
B
of which effects 
C
of its effects
D
from whose effects 