Помогите очень прошу вставьте with which who that I prefer magazines ... designed specifically for teenagers. I love peopl

1. I prefer magazines designed specifically for teenagers (в этом предложении либо вообще ничего не ставится, либо ствавится which, НО только при наличии глагола: which are designed или which was designed, к примеру). 2. I love people with a good read. 3. Sometimes I have to read technical texts that it is quite difficult. 4. I often borrow some books from the library that is just around the corner. 5.  Scientists have found that a book was written about eight centuries ago.