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
—When did Bob leave?—I have no idea. I ________ a shower upstairs.
#99457
A
took
B
have taken
C
was taking
D
would take
Now that she is out of a job, Lucy ______ going back to school, but she hasn’t decided yet.
#102289
A
had considered
B
is going to consider
C
has been considering
D
considered