(2016·湖南东部六校高三联考)语法填空。
One of the major holiday shopping days is the day after Thanksgiving.It is __1__(frequent)referred to as Black Friday.The use of the word “black” relates __2__ the business accountants.Storekeepers used to record profits in black ink and losses in red ink.So __3__(be) “in the black” on the Friday after Thanksgiving means a good thing，a return to profits.
