英语中时态的区分比如说 Have you had experience in doing the work.中为什么用h

英语中时态的区分比如说 Have you had experience in doing the work.中为什么用h 英语时态区分have done .have been doing.had done.had been doing.有什么 What problems have you had in your work or work experience t do you have any work experience experience为什么不用复数 do you work in the way I have shown you 中 in the way的意思 在英语时态中,为什么完成时中只能用have/has/had而不能用be 动词? 英语作文the most touching experience i have had in this winter v I have 0 year of work experience这句话中 year该是复数形式吗?为什么 英语中过去完成时是have还是had?它是怎样构成的?还有哪些时态?请举例! 理解Have experience in doing sth you had had experience of this attack.此处experience 为什么用零冠词 英语时态的两个句子 I had/ have had two serious accidents in my life.T