You have to stay behind if your homework         before five o'clock.
#44375
A
wasn’t done
B
hasn’t done
C
doesn't do
D
isn't done
推荐题目
Chinese __________by more and more people in the world now.
#44955
A
speak
B
spoke
C
is spoken
D
was spoken
 Young trees____ quite often.
#44612
A
should water
B
should be water
C
should be watered
D
watered
The 29th Olympic Games _____ in Beijing in 2008.
#45017
A
is held
B
was held
C
holds
D
held