英语句型分析,高手帮我看看
It is determined that cigarette somking is dangerous to your health.
It is crucial that we get this information.这两个句子是不是都是以it做形式主语,that 从句为真正的主语结构的句型.
It is there alone you can learn diseases.这个句子中省略了that,这个that是不应该在there之后alone之前