The ambulance was just arriving, for a worker, who ______ the window on the second floor, fell off the window.
#102127
A
had been repairing
B
was repairing
C
has been repairing
D
would be repairing
推荐题目
--- Nancy is not coming tonight.    --- But she______!
#103440
A
promises
B
promised
C
will promised
D
had promised
 With the help of high technology, more and more new substances ______ in the past years.
#104082
A
discovered
B
have discovered
C
had been discovered
D
have been discovered
--Where did you get the breaking news? --It _________ in the newspapers. 
#99515
A
published
B
is being published
C
would publish
D
has been published