What where you doing when someone Knocked at the door?I ____ ____ ____ ____ ____(接电话)

问题描述:

What where you doing when someone Knocked at the door?I ____ ____ ____ ____ ____(接电话)

was picking up the telephone。

你好, 应该是:
am getting on the phone
接电话 get on the phone
~~~~~~~~~~~~~~~~祝你进步,如对你有帮助,请及时采纳~~~~~~~~~~~~~~~~~~

I (was answering a phone call) (接电话).