楼主 陈述句边疑问句很好掌握的,如果是BE动词,只要把主谓的位置调换一下；如果是实义动词的话,只要加个助动词就行了.然后把句号改成问号.举几个简单的例子,我相信你可以明白的.
NO.1
陈述句：She is a beautiful girl.
疑问句：Is she a beautiful girl?
NO.2
陈述句：He likes sports.
疑问句：Does he like sport?
NO.3
陈述句：You want to study English.
疑问句：Do u want to study English.