Вставьте нужную форму глагола to be , обращая внимание на время предложения.. образуйте 2-мя отрицательную форму предложений. a) there…a lot of my colleagues when i came to my office. i realized i was late. b) there …his first article in this magazine. c) …there a signature on your letter? it has not been delivered in time. d) there …just… a thunderstorm, i think. everything is wet through. e) …there great deal of natural resources in russia. f) there ..a lot of sugar in my tea yesterday. 3. замените выделенные слова местоимениями. a) my cousin and i help our close friend to cope this problem. b) our relatives want to write a letter to my nephew. c) the man lost the key and asked my brother to help . d) her sister will tell your friends about that accident. e) the firm raises the earnings by means of new technologies.
B) is / isn't
C) was / wasn't
D) is / isn't
E) is / isn't
F) was / wasn't
В третьем какие из них выделенные?