45 B
46 A
47 C
48 C
49 D
50 B
IV
1 will give
2 have read
3 elected
4 hasn't been cleaned
5 had gone
6 were written
7 will be chosen
8 will be
9 shouldnt go
10 are walking
V
1 are => is
2 many => much
3 walk => walking
4 sadly => sad
5 there => there're
6 doesn't => does
7 may => bỏ
8 by => on
9 are= > is
10 shock
VI
1 freedom - slavery
2 proud - national
3 cultural - public
4 difficult - solve
5 having - successful