They have six classes every day .变一般疑问句.------- ------- ------- do they ------- every day

问题描述:

They have six classes every day .变一般疑问句.------- ------- ------- do they ------- every day

变一般疑问句的话就是Do they have six classes everyday?
特殊疑问句 即对six提问的话是How many classes do they have every day?