VI. Chọn đáp án đúng cho mỗi câu sau. 36. Traveling by plane is more expensive than traveling by train. A. Traveling by train is cheaper than traveling by plane. B. Traveling by train is more interesting than traveling by plane. C. Traveling by train is better than traveling by train. D. Traveling by plane is not as cheaper as traveling by train. 37. Viet Nam has a lot of tropical forests. A. There has a lot of tropical forests in Viet Nam. B. There is a lot of tropical forests in Viet Nam. C. There are a lot of tropical forests in Viet Nam. D. There aren’t many tropical forests in Viet Nam. 38. When is your father’s birthday? A. What is your father’s day of birth? B. What are your father’s date of birth? C. When is your father’s date of birth? D. What is your father’s date of birth? 39. The students will have a vacation that lasts for three months. A. The students will have a three – months vacation. B. The students will have a three month vacation. C. The students will have three months vacation. D. The students will have a three – month vacation. 40. How many hours a day do you spend doing your homework? A. How long does it take you to do your homework each day? B. How long does it take you doing your homework each day? C. How much does it take you to do your homework each day? D. How often do you do your homework?