帮我看看下面这段话有什么语法错误或者其他不好的,很短的
Today,I interviewed a foreigner.he is a teacher in maodun senior high school where my mom works.he is chinese man.but when he was liitle,he went to canada .because his father worked there.so he just could speak english a little.he has short hair and it is black.he wear a pair of glasses.he dressesd very 随意t-shirt,shirt and sandals.he was very friendly when I entred his office.i asked him 10 questions.he answered very carefully.but I couldn’t understand very well.becouse my english is not well.