вопросы 1) Ты чего- не знаешь? why they use чего (родительный падеж)? 2)На, держи! _ На и тебе! what's the meaning of "На" in these sentence?

что значит? what's the meaning of: 1) Ну, Не получается. 2) Угощайся!

вопрос? С четырёх часов до пяти часов Why we after 4 часов (родительный падеж plural) and didn't say с четырёх часа as we should put the word after number 4 in gentive singular?

How can I say these sentences? 1) I worked as receptionist at hotel for one year. 2) I have been working Do we translate the second sentence ( present perfect continuous) like the first (the past simple tense) or what? 3) Language training center.

plural nouns in accusative case what is the plural of these nouns in accusative case: отец (отцов or отцев) сестра? and what about the neutral noun in plural does it change or not? Do we say for example: _Я вижу большие животные. or we say _ Я вижу больших животных.

мультфильм Hi everyone! anyone knows a simple Russian cartoons with Russian script and English subtitles? I can't understand the cartoons I saw without script :(

need help, please! 1) How can I say this sentence (I graduated from faculty of engineering )? 2) он позвонит домой. _ Письмо домой. how can we translated these sentences, and the word Домой in what case exactly? 3) Ну вот и хорошо. how can we translate it?

Хотеть / Мочь+ инфинитив what is the difference in the meaning when we use мочь и хотеть+ perfective and imperfective 1)_я могу покупать продукты. _я могу купить продукты. 2)_я хочу есть. _я хочу съесть. and is it right that when we use verb хотеть in the negation we always use it with imperfective or what ? because I see in textbook they wrote just (НЕ+ Несовершенный) and they didn't wrote that use negation with perfective( Не+Совершенный)? like that _Я не хочу писать письма. or can we say Я не хочу написать письма.

translation please what is the meaning of (уже был) and (ещё не был)? and ещё meaning still or not yet we understand that we didn't do something then why the verb comes in the past tense?