Để xác định độ cao của các vành đai khí hậu phải căn cứ vào
A. độ cao địa hình
B. hướng của địa hình
C. vị trí của địa hình.
D. độ cao và đặc điểm khí hậu.

Kĩ thuật canh tác  trong nông nghiệp không được sử dụng ở miền đồi núi là
A. làm ruộng bậc thang.
B. đào hố vẩy cá.
C. trồng cây theo băng.
D. kinh nghiệm "Đốt, phá, chọc, tỉa" của đồng bào vùng cao.

Choose the correct sentence which is built from the words and phrases given:
Hillary Clinton's father / successful businessman/ the textile industry / her mother / homemaker //
A. Hillary Clinton's father is a successful businessman in the textile industry and her mother is a homemaker.
B. Hillary Clinton's father was successful businessman in the textile industry and her mother was a homemaker.
C. Hillary Clinton's father was a successful businessman in the textile industry and her mother was homemaker.
D. Hillary Clinton's father was a successful businessman in the textile industry and her mother was a homemaker.

Choose the best answer for the following sentence:
I cannot pack all my clothes in ___________ I bought a jumbo-bag.
A. but         
B.  however              
C. although             
D.  because

Choose the best answer for the following sentence:
It is sport that helps us live _____________. 
A. health                    
B. healthy                     
C. healthily                 
D. healthful

Choose the correct sentence which is built from the words and phrases given:
We / go / camp / hill / nearby //.
A. We are going to go camping on the hill nearby.
B. We are going to go camping on the hill in nearby.
C. We are going to go camping on the hill at nearby.
D. We are going to go camp on the hill nearby.

Choose the best answer for the following sentence:
- ___________________?- Rock-'n-'roll
A. What kind of music do you like
B. When do you often play music
C. How often do you play music
D. Which musical instrument can you play

Hiện tượng thời tiết đặc sắc nhất vào thời kì mùa đông ở Bắc Bộ là
A. bão.
B. mưa ngâu.
C. mưa phùn.
D. mưa đá

Choose the best answer for the following sentence:
What are you doing at 8 o'clock tomorrow?I __________ in class.
A. will sit             
B. am going to sit                
C. will be sat              
D. will be sitting

Choose the best answer for the following sentence:
Air conditioner is used to keep the air cool or warm ____________ it is hot or cold.
A. Which                  
B. what                      
C. when                    
D.  where