He visited the Great Wall last weekend.（改为一般疑问句）
问题描述：
He visited the Great Wall last weekend.（改为一般疑问句）
答
did he visit the Great Wall last weekend?
答
Did he visit the Great Wall last weekend?
答
Did he visit the Great Wall last weekend?
告诉你改过去式一般疑问句的方法：若是Be,直接调前面；若是实意动词,前面加Did,动词变原型.