1. 我正忙着协调安排记者招待会。
I am in the middle of arrange the coordination of press conference
2. 我正忙着做正餐吃的馅饼,这时电话响了。
The phone is rining when i am in the middle of cooking pies for dinner.
3. 父母突然返回时,他们正在开晚会。
They are in the middle of evening party when the parents returned back