厨师正在准备食材。

The ___chef is preparing the ingredients.

这位厨师在五星级酒店负责准备所有的主菜。

The ___chef at this five-star hotel is responsible for preparing all the main courses.

他在五星级酒店当了五年主厨后决定自己创业。

He ___chefed at a five-star hotel for five years before starting his own business.