Lots of men and women go shopping on Black Friday in the USA and other western countries．Supermarket gives discounts（折扣）of up to 70%．It's a big shopping day in the USA and it____ into Britain five years ago．On that day，the police go to the supermarkets and shoppers are there．The police are worried that the supermarkets are too____With the help of the police，shoppers can get in and out of the supermarkets safely．

    Shoppers in the UK are happy on Black Friday____the clerks in the supermarkets are not．Because they are very tired on that day．On the US____of Thanksgiving，people spend it with their family．Many big stores aren't open on that day．There are over 60 letters on the website Change，org．All of ____show that they want Black Friday to change．They think family is more important than profits（利润）．