pereza

It's plural, yeah, and I disagree, I've never heard the word "vacacion" in Spanish. I guess is plural because you understand you've been off for a bit rather than only one day. In Spain holidays are usually summer ones 15 or a bit less days, same Xmas and Easter so probably works like that. Let's think is like in English.. You also say holidays...

That'd be. "No hay salida" meaning there is no way to go back because something has been already done and cannot be change. That's the figurative way... Literally will be the same, there is no way out, like when you go to a street that is shut and you have to go back to get out of there. You could also you "No hay marcha atras". Although both are correct, probably the first one is just more common only because it's a bit shorter. Hope helps.

Sarebbe, "allora", "quindi", "visto che".... Lo spagnolo 'e sempre come l'italiano.. :-)

That is the polite way to address to a person. A waiter would never (unless you know him/her or the place you go it's quite cheap) address to a costumer as a friend using the colloquial way of "you". In Spanish the 3rd person when used to address to a person to whom you directly talk (which will be logic to use the 2nd person) is used when you want to show some respect (which will be the polite YOU in English). That's why in that phrase is used "tiene" (he/she) instead of "tiene" (you). As you notice and you know, in Spanish you need to use everything in the same person therefore as the phrase is polite and so addressed to she/he (tiene) the possessive is also his/her (su) instead of "tu" which will be used if it was addressed to you (not polite way in this case). Hope it helps :-)

санитарной обработки оборудования розлива использовать. Esli tak po-ruski

regardez ici: https://www.google.es/search?q=paso+a+nivel&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&hl=es&tbm=isch&source=og&sa=N&tab=wi&authuser=0&ei=TkkkUP-iPI-3hAfXs4CABA&biw=1231&bih=785&sei=U0kkUK70NIyzhAe9qYDYAQ

Dancing by my own, what can I do? In the rear-view mirror Hope it helps :-)