.Unfortunately, when I arrived, Mary , s
问题:
.Unfortunately, when I arrived, Mary , so we only had time for a few words.
A.was just leaving
B.just left
C.has just left
D.had just left
.Unfortunately, when I arrived, Mary , so we only had time for a few words.
A.was just leaving
B.just left
C.has just left
D.had just left