This is a good place to pratice to football..这里是不定式做主语后置吗?

This is a good place to pratice to football..这里是不定式做主语后置吗? This is a good place ( )play football This beautiful park is a good place to have fun the moring air is so good to breathe 这里面不定式 to breathe 是做定语还 英语句子结构分析 this book is good to read.he is apt to lie.后面的不定式是做 To know everything is to know nothing 这里为什么是不定式的主语,everythin it is hard to believethat从句句子成分是不定式做主语还是从句做主语 this is a good place to have fun 是样的结构什么 it is all right to show we're sad.这里面it做形式主语,真正主语是后面的不定式,但是 to do不定式可以做主语吗 英语翻译不定式to be a challenge 是作后置定语修饰 job 还是做其它成分? 如何区分主语补足语和to不定式做后置定语?