单项选择题

______ , someone rang me up.

A. While I left
B. While I was leaving.~
C. On leaving
D. While leaving
<上一题 目录 下一题>
热门 试题

单项选择题
There must be no one in the house ______ the door is closed.
A. because
B. as
C. for
D. since
单项选择题
______ he had got no news from his son up to that time, he became so worried that he couldn' t sleep at night.
A. Unless
B. Even though
C. As
D. Whether
相关试题