EX1
1. he is seven years old.
2. He usually eat sweets in the evening.
3.he couldn’t sleep because he had a terrible pain in his tooth.
4. it is his mother.
5. he should't eat sweets in the evening.
EX2
1. tom comes from California and Linda comes from New York.
2. He likes playing soccer in his free time.
3. Ronaldo is a footballer.
4. She often surfs the Internet in her free time.
5. they often chat online on Saturday or Sunday evenings.
EX3
1. she often watches game show on TV.
2. Yes she does.
3. he goes to the stadium on Saturday afternoon.
4. he often watches soccer match with his brother.
EX 5
1. he visited the Temple of Hung King in Phu Tho Province.
2.The Temple of Hung King is on Nghia Linh Mountain.
3. He went there by bus.
4. He went there with his classmates.
5. he thinks it’s more beautiful than he expected.
6. the visit helped them learn more about the history of Vietnam and the people.
EX6
1. it's Ho Chi Minh City.
2. It's Ha Noi.
3. Ha Noi is older than Ho Chi Minh City.
4. yes, it is.
5. Yes, there are.