我准备了一些零食给孩子们下午吃。

I ___prepared some snacks for the kids to eat in the afternoon.

她正在厨房准备午餐。

She is in the kitchen ___preparing lunch.

他深呼吸了几次，为即将到来的演讲做准备。

He took a few deep breaths to ___prepare himself for the upcoming speech.

妈妈正在厨房准备晚餐。

Mom is ___preparing dinner in the kitchen.