4.
1. Is Washington the seat of central ( federal ) govrrnment?
2. The seat of the central ( federal ) government in Washington, isn't it?
3. What is the seat of central ( federal) government in USA?
4. The seat of central ( federal ) govermment is Washington or New-York?
5. What Washington is the seat of central ( federal ) governmemt?
5.
1. the largest - самый большой. ( large - larger - the largest )