question about "of"

  • Hi
    Could you tell me, it is necessary "of " before "gaining " in next sentence?
    Thanks
    Diversity websites devote to expose a variety of methods, approaches of gaining knowledge, skills, habits.

  • Я переписала его вот так
    Diversity sites by using a variety of methods, approaches have been devoted to acquiring knowledge, skills, habits.
    это правильно?

  • Думаю что Diversity sites using a variety of methods, approaches have been devoted to acquiring knowledge, skills, habits.

  • Нужно знать смысл этого предложения на русском языке.

    Перед словом GAINING мы скорее употребляем предлог TO, а не OF. approaches TO gaining knowledge...

    Diversity websites are meant to expose a variety of methods and use approaches to gaining knowledge, skills, habits.

  • Спасибо
    Diversity websites are devoted to expose a variety of methods, approaches to gaining knowledge, skills, habits.