—When did Bob leave?—I have no idea. I ________ a shower upstairs.
#99457
A
took
B
have taken
C
was taking
D
would take
推荐题目
Mr. Black _____ for Shanghai in a few days. Do you know when the earliest plane _____ on Sunday. 
#101752
A
leaves; takes off
B
is leaving; takes off
C
is leaving; is taking off
D
leaves; is taking off
Two building workers got seriously wounded when the stadium _______. 
#99780
A
was built
B
was being built
C
built
D
is being built