Hi Barbar,
Thanks for the good lesson, no wonder that you are a teacher, I knew that you retired as a teacher, but never knew that you taught English. Now you can teach us on the blog.
Not many people write languages on the blog, neither Chinese nor English. I am not a language major; but love both Chinese and English. You may have found that I have a language series on my blog. If you find errors that I may have made, please correct them for me, I'd appreciate it.
I retired a few months after you did; continue enjoy your retirement.
Tong Xiao Ke