问题
选择题
---What were you doing when Tom came to see you?
---I had just put on my overcoat and_____ to visit my friends.
A．left
B．was left
C．was leaving
D．had left
答案
答案：C
考查动词时态。根据I had just put on my overcoat and_____ to visit my friends可知是我刚刚穿上外套，要去拜访朋友。表示过去将要做某事，leave是表位置转移的词，可以用它的进行时态表将来。所以选C。