https://online2.tingclass.net/lesson/shi0529/0009/9907/444.mp3
https://image.tingclass.net/statics/js/2012
讲解文本：
draw a blank 脑中一片空白
Every time I try to remember my phone number, I draw a blank.
每一次我想要记起我的电话号码时，脑袋总是一片空白。
What was the name of our English teacher? I've completely drawn a blank.
我们英语老师名字叫啥来着?我完全想不起来了。
我觉得Mike在隐瞒着什么。
