What do you think of the lecture of Li Yang’s Crazy English?-I think it’s , but someone thinks it’s much too .

My mum was born ______ May 2nd, 1971. [ ]

You don’t look well, Don! You’d better see your doctor.— I ________, but he said there was nothing wrong.

Will you get there by _____ train? – No, I’ll take _taxi.

Jack’s mother was twenty-seven when he was born. Jack is eleven this year. How old is his mother?