完成对话

Joan: Why are you so late?

Michael: ________ I left them in the car.

A、 I couldn’t find my car keys
B、 You know what happened?
C、 I didn’t catch the bus
D、 My car was out of order

【正确答案】 A

【答案解析】

问句“你怎么这么晚?”回答“我找不到我的车钥匙，我把它们落在车里了。”