it is an problem needs urgent attention to protect some significant sites. 帮忙看看这句话有没有什么
问题描述：
it is an problem needs urgent attention to protect some significant sites. 帮忙看看这句话有没有什么
紧急
我要的是看看这句话有没有什么错误……
我拒绝打酱油的！！！！
答
1.改正：It is a problem which/that needs urgent attention to protect some significant sites.2.句子主干是：It is a problem to protect some significant sites.it是形式主语,is a problem是系表结构,而不定式...