那个海马已经工作十年了（现在完成时)肯定 否定 疑问 答句
问题描述：
那个海马已经工作十年了（现在完成时)肯定 否定 疑问 答句
是
答
肯定句: that sea horse has worked for 10 years.
否定句: that sea horse has not worked for 10 years.
疑问句: Has that sea hourse worked for 10 years?
答句: Yes, it has.
你那个 "海马" 是指海洋生物的那个 "海马" 吗? 海马也要工作?