Помогите пожалуйста сделать разбор предложения на английском (задать к предложению пять типов вопросов): They set to work with their spades.

Do they set to wark with their spades? They set to work with their spades, don't they? Who sets to work with their spades? Do they set to work with their spades or with their rakes? When do they set to work with their spades?