В 1914 году город получил название "Петроград" и изменил на "Ленинград" в 1924 .
1) new technologies
2) social network to have friends
3) people used books for have knowledge instead internet
4) internet
5)internet
6)internet
1 most
2 were
3 busiest
4 are
5 is
6 has
7 shortest
8 are
9 will be
10 had
18.Rewrite using possessive expression.
1.My mother has a sister, her son is my mother's nephew.
2.My Father has a brother, his daughter is niece of my father's niece.
1) 3(48+23)=213
2) 2(53-19)=68
3)735:(85-36)=15
4) (251+649):75=12