Сделать дз. ( составить предложения). (to) try to do one's best-пытаться сделать все возможное (to) be of great importance-иметь важное значение as quick as possible- как можно быстрее. (to) learn by heat- учить на память. mother tongue- родной язык. i beg your - i don't understand you- я вас не понимаю. say it again, please- скажите ещё раз, . please, speak slowly- говорите, , медленнее. what does this word mean? -что значит это слово?

1)"You must try to do one's best, Mike, if you want to have good marks!" - said my mum when I was trying to fix my laptop
2)My family's of great importance for me. (ИЛИ My room's of great importance for me. 
3)My sister's in hospital! I should run away from school as quick as possible!
4)I must (to) learn fifty polish words by heat for my tomorrow's exam, but I don't know it and I haven't the shit of paper with this words. 
5)My mother tongue is russian. 
6)"I beg your pardon" is a sinonim of "I'm so sorry!"
7, 8, 9) I don't understand you, please, say it again and speak slowly. 
10)I'm not american girl, guys, what's (сокращение от does) this word mean?