My job is to teach you how to study English well.中为什么用to teach而不用teaching

My job is to teach English?为什么要用to my job is to teach them English,表语是什么? to teach is my job着句话有错吗? My job is teaching 中的teaching和My job is to teach you 中的to teach有什末去别 TO teach them English is my job 可否改为Teaching them English is my job 为什么 To teach them English is my job.等于Teaching them English is my job. my job is teacher 和my job is to teach的区别 My job is to teach them English 如果my是定语 主语是my job还是job吖 My job is to teach you how to study English well.中为什么用to teach而不用teaching to teach them English is my job 分出主语 谓语 宾语 定语to teach them English is my job 分出主语 谓语 宾语 定语 状语 It is my job to teach them english .这句话主语是哪个? be to do 和be doing的区别例如：My job is teaching.和My job is to teach.有什么区别啊? My job is to teach poor kids to learn.谁能讲解一下这个句子中的两个to My job is to teach和My job is tesch有什么区别?请详细的说明吧 详细 详细 谢谢 your job is teaching 还是is to teach I don't have time to play.to play是形容词吗 还是名词My job is to teach poor kids to learn 中的to learn 呢 to teach english is her job/teaching english is her job?to teach english is her jobteaching english is her job?两句都对吗?有什么区别? Her job is teaching.可以写成Her job is to teach.