zhang peng cleaned his room last night,改为一般疑问句是Did Zhang Peng clean his room last night?借助助动词 Did
授人以鱼不如授人以渔,陈述句变一般疑问句要先看动词,如果有情态动词,直接把情态动词提到句首,句末句号改成问号;如果是be动词,把be动词按句种形式提前,再把句号改成问号;如果不是以上两种情况,就把do按句中时态、人称提前,并把句中谓语动词变为原形,再把句号改为问号