Các anh chị làm giúp em ạ!!!

1, London is a expensive city.

→ London is an expensive city.

2, The party was such boring that I decided to leave early.

→ The party was so boring that I decided to leave early.

3, My father's office are on the second floor.

→ My father's office is on the second floor.

4, Peter earned many money last year.

→ Peter earned much money last year.

5, How long does it take you getting to school?

→ How long does it take you to get to school?