Задание 11,изменить окончание.
Помогите пожайлуста
1 are 2 is 3 better 4 normally 5 world's 6 largest 7 be traced 8 decided 9 had 10 returning 11 joined 12 ( has) transformed 13 includes 14 dancing 15 to enjoy 16 has become 17 most popular 18 second