Заполните пропуски на практике внедрение сослагательного наклоненияIt ___ useful to investigate

Заполните пропуски на практике внедрение сослагательного наклоненияIt ___ useful to investigate this problem. 2 There ___ no results without thise experiments. 3 He suggested that you ___ this article. 4 I wish I ___ about. 5 It is important that you ___ in this experiment. 6 I brought a book for you so thst ___ it. 7If I were you I ___ this lecture. If you visited the Library you ___ some more information about it. 9 If you had visited the library you __ some more information about it. 10. It ___ difficult to enter this university.