Помогите !!! Даю 15 баллов

2. The happiest, have ever met
3.The most interesting, I have ever read
4.the ugliest, has ever seen
5. The most boring, have ever had
6.the most expensive, has bought
7.the worst, have made
8.the most difficult, have ever learned
9.the most wonderful, have ever heard
10.the oldest, has built