一个英语句子结构的分析Wouldn’t it be great if we didn’t have to remembe

一个英语句子结构的分析
Wouldn’t it be great if we didn’t have to remember passwords ever again?If we could just sit in front of our computers and be automatically logged in?
请分析“If we could just sit in front of our computers and be automatically logged in?”这个句子的结构.
并翻译,尤其是后半句.
是问号结尾，是不是原题打印错了？
还有and 后面省略了后半句的主语了吧？省略什么？