Someone called me up in the middle of the night, but they hung up I could answer the phone.
#56488
A
as
B
since
C
until
D
before
推荐题目
_____ a lot of small ads are put up on the walls, out city will be untidy.
#55173
A
Until
B
Though
C
If
D
Unless
Yesterday morning I was just leaving_______ the telephone rang.
#55954
A
when
B
while
C
because
D
since
I was just falling asleep ____ there was a loud knock at the door.
#56801
A
while
B
when
C
until
D
as soon as
