Hai hệ phương trình $\displaystyle \left\{ \begin{array}{l}3x+ky=3\\2x+y=2\end{array} \right.$và$\displaystyle \left\{ \begin{array}{l}2x+y=2\\x-y=1\end{array} \right.$ là tương đương khi k bằng:
A. k = 3
B. k = -3
C. k = 1
D. k = -1

Choose the correct sentence which is built from the words and phrases given:
you / come out of / bus stop, turn right / keep walking / go over a bridge.
A. Coming out of the bus stop, turn right and keep walking until you go over a bridge.
B. After you come out of the bus stop, turning right and keep walking until you go over a bridge.
C. After you come out of the bus stop, turn right and keep walking until you go over a bridge.
D. After you come out of the bus stop, turn right if you keep walking until you go over a bridge.

Find a mistake in the four underlined parts of the sentence and correct it:
My teacher is used to check students’ old lessons.
A. used
B. check
C. students’
D. lessons

Choose the best answer for the following sentence:
What makes a computer such a _________ device?
A. miracle                
B. miraculous             
C. miraculously      
D. wonder

Choose a word that has different stress pattern:
contain                       event                        holiday                      instead
A. contain                       
B. event                        
C. holiday                      
D. instead

Choose the best answer for the following sentence:
____________ people go to football matches now' than twenty years ago. 
A. Less                       
B. Lesser                       
C. Few                      
D. Fewer

Choose the best answer for the following sentence:
After doing the washing, she hangs up her clothes to make them ____________ .
A. dry
B. being dry 
C. drying 
D. dried

Choose the best answer for the following sentence:
My father ___________ the Internet when my mother was cooking dinner. 
A. surf               
B. surfs               
C.  surfed                 
D.  was surfing

Choose the best answer for the following sentence:
I like to go to the countryside at weekends to enjoy the fresh air and ___________ beauty of ___________ nature.
A. Ø / the
B. the / Ø
C. a / the
D. a / a

Choose a word that has different stress pattern:
announce                 office                    fasten                      hobby
A. announce                 
B. office                    
C. fasten                      
D. hobby