1. Без неё (без кого?) - местоимение 2. Н. ф. - она 3. П. п. - 3 лицо 4. Н. п. - в Родительном падеже, в единственном числе, женского рода. 5. Без неё (без кого?) - дополнение
We did quite a lot of subjects at school. They were: Physics, Mathematics, Biology, Russian Literature, Chemistry, English, History of this country and many other subjects. It was rather difficult to go to school when a school-leaver, we had so much to do. I know that all the subjects are important and they all must be payed much attention to, but still I didn't like exact sciences. I spent much time on doing them at home. However hard I tried, all those formulas and definitions were mixed up in my head and I couldn't make it out after all. So I had nothing to do but sit for two or three hours swotting Physics, Chemistry and Maths. My favourite subjects were Literature, History, English. Most of all I liked English. I read English books, tried to translate some stories from newspapers from English into Russian and vice versa. I had some English handbooks and they were of great help to me when I studied English Grammar and did some exercises. At our English lessons we read quite a lot of dull texts from our textbooks. But in my view, written texts and textbooks are not important.
2. Н. ф. - она
3. П. п. - 3 лицо
4. Н. п. - в Родительном падеже, в единственном числе, женского рода.
5. Без неё (без кого?) - дополнение