They may choose Wang Hong monitor of their class.变为被动语态
问题描述：
They may choose Wang Hong monitor of their class.变为被动语态
答
Wang Hong may be chosen to be the monitor of his class.帮忙解释一下！！！动词结构是:choose sb monitor of the... sb是宾语,choose前的是主语,被动语态的话宾语变主语,宾语中his class比their class好,因为呼应主语