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
The vase ____easily. Be careful when you handle it.
#102727
A
will be broken
B
will break
C
is broken
D
breaks
 Hurry up! The train _____. You know it______ at 8:30 am.
#100211
A
leaves; leaves
B
is leaving; leaves
C
leaves; is leaving
D
is leaving; is leaving
David _____ a customer when the fire started.
#101355
A
served
B
was serving
C
had served
D
would serve