1. Discovery: The discovery of America was a very important historical fact.
2. The documentary about the discovery of fossils is very interesting.
2. Emperor: The emperor of Rome was very strict.
2. The emperor built his empire.
3. Empire: The Roman Empire was very big.
2. The Aztec empire covered much of Mexico.
4. Imperial: The imperial palace is very big.
2. The imperial army is very strong.
5. Monarch: The ruling monarch of Great Britain is Queen Elizabeth II.
2. Tomorrow they elect the monarch of the kingdom.
6. Monarchy: The monarchy was the system of government that predominated in the Middle Age.
2. The monarchy is a form of government.
7. Republic: The Republic of Guatemala is beautiful.
2. The Republic of Brazil is the biggest in South America.
8. Revolution: The French Revolution was a very important event.
2. The Guatemalan revolution is celebrated on October 20.
9. Treaty: The Versailles Treaty was signed to end World War I.
2. Guatemala signed a peace treaty.
10. Tyrant: The emperor of Greece was a tyrant.
2. There are many tyrants in the world.
11. My dad is the owner of the house.
2. Angel is the owner of a cell phone company.
12. Another: I need another uniform to train soccer.
2. My mom wants to buy another car.
13. Passenger: The plane was filled with 102 passengers.
2. The school bus carries 25 passengers.
14. Death: My dog had an accident and caused his death.
2. World War II caused many deaths.
15. Tricky: The math exam was very tricky.
2. It's tricky to ride a bicycle.
16. War: My teacher explained to me everything about World War II.
2. War brings death, destruction and hopelessness.
