国家开放大学 / 综合英语（2）
正确率：100%
----What did you do?
----- _ _ _ _ _ _ _ _ .
a.I am calling the police.
b.I was calling the police.
c.I call the police.
d. I called the police.
----- _ _ _ _ _ _ _ _ .
a.I am calling the police.
b.I was calling the police.
c.I call the police.
d. I called the police.
参考答案：
佳题速递：