Помогите, пожалуйста, исправить вопросы.
1)How many floors has in the building?
2)Why foreign architects arrived to China?
3)What are materials used at project?
4)Why were foreign and local workers conbinated? (неверно употреблено последнее слово)
5)What is future of Chinese design?
6)How was place the exhibition passed (неверно употребленное слово) in Beijing?
7)Who help development of project?
8)What an important part of the project?

1) how many flours are in this building?2) why did foreign architects arrive in China?3) What materials are used in the project.4)united5)6) мб изменить passed на conducted или took place7) Who helped developing the project?8) What is an important part of the project?