расставьте глаголы в правильной форме, как P. s и P. c
И если не трудно , написать правила использование этих двух форм в одном предложении

-good morning! can i help you?

-oh, yes, please. i'm looking for "prostokvashino" milk. (можешь заменить фирму молока на  

-we have this one. 

-nice! how much?

-2$. 

-here you are.

-thank you. you are welcome. good bye!

-thanks! good bye!

вы находитесь в продуктовом магазине. у вас есть список покупок. поговорите со своим одноклассником. он продавца. список покупок: я хочу в: вот, . что-нибудь еще? бутылка масла: ну, я тоже хочу мешок риса б: к сожалению, у нас нет какой-либо но у нас есть пакет молока: в банку с помидорами: плитка шоколада пакетик чая одного лимона

this summer i was in the camp. i was there for 3 weeks. there were many interesting things in the camp. every morning we did exercises. then we had our breakfast. after it we cleaned our rooms and territory of our camp. then we went to the sea. when we returned to the camp we had dinner. after it we slept for 2 hours. then we went to different   sections. in the evening we had supper and went to the disco. at 10 o'clock we went to sleep.

-hi. i have a birthday next week, and i woud arrange a party.

-oh! it's a good idea.

-can you help me with it?

-yes of cause. how do you want decorate your flat?

-actually i dont may be some

- i'll buy them. and who do you want to invite?

-my close friends only. and you of cause!

-ok. what about snaks?

-my mom wants to cook some snaks like and ill buy a cake.

-it wiil be a great party, i think!

-i want to belive in that. ill call you. bye!

-bye!