Task 3. each sentence has one mistake. write the correct sentences.
1. i became interested in science after i have taken part in a school science project.
2. the montgolfier had presented their first air balloon in 1783.
3. he went on a long holiday after he finished his studies.
4. what did they see while they flew?
5. what was you doing last night at 8.00 pm?
6. they became famous they had made their first invention.
7. i had been working as a teacher since many years.​

ответ:

3. в каждом предложении есть одна ошибка. напишите правильные предложения.

1. я заинтересовался наукой после того, как принял участие в школьном научном проекте.

2. монгольфьер представил свой первый воздушный шар в 1783 году.

3. после окончания учебы он отправился в долгий отпуск.

4. что они видели во время полета?

5. что вы делали вчера вечером в 8.00 вечера?

6. они прославились тем, что сделали свое первое изобретение.

7. я работал учителем уже много лет.​

объяснение:

-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!