(1) The form of the Accusative case for a-declension nouns: -у (-ю)
If the Nominative ends in -а, the Accusative ending will be -у.
If the Nominative ends in -я, the Accusative ending will be -ю.
Nominative:СђшаМђшаПљтяЂняВолћдя
Accusative:СђшуМђшуПљтюЂнюВолћдю
(2) The function of the Accusative case: direct object of a verb
Спросќте Мђшу.Ask Masha.
Спросќте когћ-нибудь.Ask somebody or other.
Закрћйте кнќгу.Close the book.
Кђк вђс зовџт?What's your name? (Lit. 'How do they call you?')
Менї зовџт Сђша.My name is Sasha. (Lit. 'They call me Sasha.')