I.
1. a
2. b
3. d
4. d
II.
1. She is 12 years old.
2. She is in grade 6.
3. She lives with her mother, father and two brothers.
4. Yes, it is
PART V.
I.
1. Lan is the most intelligent student in my class.
2. They play football well.
3. Nam likes watching television.
4. What a beautiful girl (she is)!
II.
1. Phan Xi Pang is the highest mountain in Vietnam.
2. My brother has lived in Ho Chi Minh city for ten years.
3. If you work hard, wou will pass the exam.
4. There will be less air pollution if more people cycle.
