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 _____ on a sofa because my grandparents have come for the weekend.
#104156
A
slept
B
was sleeping
C
have slept
D
am sleeping
The teacher told us that light ______ faster than sound.
#103618
A
traveled
B
had traveled
C
is traveling
D
travels
 Mencius believed that the reason why man _____ the animals is that man is good.
#103533
A
is similar to
B
is different from
C
are clever than
D
are kind to