You are both right. Only the first was physically right and yours is referential correct. Not all embassies have 7 floors but however many floors it does have the top floor is where (they) and it's referee to as the 7th floor group.
You are both right. Only the first was physically right and yours is referential correct. Not all embassies have 7 floors but however many floors it does have the top floor is where (they) and it's referee to as the 7th floor group.