Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words. 
#104738
A
has just left
B
had just left
C
just left
D
was just leaving
推荐题目
I _____ his telephone number. Had I known it, I would have rung him up.
#100016
A
don’t known
B
didn’t know
C
hadn’t known
D
haven’t known
The new movie ____ to be one of the biggest money-makers of all time.
#100900
A
promises
B
agrees
C
pretends
D
intends