来自唐鹏的问题
Theyneedthirtyminutestocleantheirclassroom.(对划线部分提问)(thirtyminutes划线)________timedotheyneedtocleantheirclassroom?
Theyneedthirtyminutestocleantheirclassroom.(对划线部分提问)(thirtyminutes划线)
________timedotheyneedtocleantheirclassroom?

