--- When did your father come back last night?--- He didn’t come back _______ he finished all the work.
#56358
A
until
B
while
C
if
D
unless
推荐题目
This pair of glasses cost ________ that she didn’t buy them.
#56471
A
so expensive
B
so much
C
too much
D
too expensive
The rivers will become dirtier and dirtier ______ we take action to protect them.
#56392
A
since
B
if
C
until
D
unless
—________does your father play table tennis? —Twice a week.
#56158
A
How long
B
How often
C
How soon
D
How far