I was out of town at the time, so I don’t know exactly how it _______. 
#104951
A
was happening
B
happened
C
happens
D
has happened
推荐题目
John had to have his car repaired in a garage because it   seriously.
#103263
A
damaged
B
was being damaged
C
had damaged
D
had been damaged
---- Have you finished your report?--- Yes.I _____ it within 10 minutes.
#103651
A
finish
B
have finished
C
finished
D
will finish