Прочитайте текст. вставьте вместо каждого пропуска, обозначен- ного буквами а-е, нужную грамматическую форму, выбрав её из трёх предложенных вариантов (1, 2 или 3). kvass kvass is a traditional russian drink made out of bread and sugar. people a＿ how to make it many centuries ago. we b＿ read about kvass as early as in the 10th-century chronicles. c＿ knows where kvass was first made -- in kievan rus, scandinavia or eastern europe. what we do know is that it d＿ popular for hundreds of years in many slavic and northern european countries like belarus, poland, sweden or finland. kvass is more than a drink. many e use it to make traditional cold summertime soups, such as okroshka. a 1) learn 2) learned 3) have learned b 1) can 2) must 3) need c 1) somebody 2) nobody 3) anybody d 1) is 2) have been 3) has been e 1) family 2) families 3) family's запишите в таблицу выбранные цифры под соответствующими бу- квами.