Напишите следующие предложения,выбирая нужную форму местоимения

I want to know (him,his,he) surname.2. Iknow (he,him,his) well.3. Is chemistry (you,your) favourite subject? 4. This man teaches (we,us) geography. 5. My father and ( I,me) repair (we,our,us) radio set. 6. After school l meet (my,me) sister and go home with (her,she). 7. He helps ( l,me,my; in (me,rny) work.