The agent was about to sign his name to the document ________，to our surprise，a stranger broke in to prevent him.
#30223
A
while
B
when
C
as
D
until
推荐题目
You can make a complaint to the local government ___ you are happy with the way they deal with the matter.
#31633
A
unless
B
if
C
once
D
as
It just isn't fair ________ I was working as a cleaner last month; my friends were on a visit to Dalian.( 2012·湖北八校联考)
#29959
A
whenever
B
though
C
for
D
while
—How are you doing all these years, Jim? —Nothing new. Everything is going on _______ it was years ago.
#34375
A
as
B
while
C
when
D
since
The man, ____ is parked in front of our school, is a well-known politician.
#34099
A
whose white car
B
of whom the white car
C
of whose white car
D
the red car of his
_____ basic first-aid techniques will help you respond quickly to emergencies.
#31190
A
Known
B
Having known
C
Knowing
D
Being known