You will be late_______you leave immediately. 
#72164
A
until
B
if
C
or
D
unless
推荐题目
The old lady _________when I was in the countryside is said to be still very much alive though in her nineties.
#71837
A
after whom I looked
B
whom I took care
C
who I looked after
D
of whom I took care
The man ______ is our new headmaster.
#70779
A
who the teacher is talking to him
B
whom the teacher is talking
C
the teacher is talking to
D
who the teacher is talking