Choose the best answer for the following sentence:
The teacher said that Vietnam _______________ to South-East Asia. 
A. has belonged                  
B. had belonged 
C. belonged                
D. belongs

Choose the best answer for the following sentence:
__________ you tell me if this bus goes to Heathrow Airport? 
A. Must   
B. May  
C. Should  
D. Could

Choose the best answer for the following sentence:
The ticket agent said that the plane would be boarding at ________________________. 
A. the gate six                   
B. sixth gate 
C. gate six                   
D. the six gate

Choose the best answer for the following sentence:
While hiking in Alaska, you have to keep an eye out for bears. If you see one, you _____________ approach it. It is dangerous. 
A. might not                 
B. may not                   
C. needn’t                   
D. must not

Choose the best answer for the following sentence:
China has a ____________ population than ____________ country
A. large - any
B. large - all other
C. larger - any other
D. larger - other

Choose the best answer for the following sentence:
“Where’s the old chicken coop?”
“It ___________ by a windstorm last year.” 
A. destroy            
B. is destroyed                
C. was destroyed                 
D. destroyed

Choose the best answer for the following sentence:
As he hated ________________, he decided to desert. 
A. the life of army   
B. life in the army
C.  life of the army              
D. the army of life

Choose the best answer for the following sentence:
If you had done as I told you, I think you ____________. 
A. would succeed                   
B. would have succeeded
C. could succeed                 
D. had succeeded

Choose the best answer for the following sentence:
They had invited over one hundred guests,_____________ .
A. I didn’t know any of whom
B. none of whom I knew
C.  not any of whom I knew
D. I knew none of who

Choose the best answer for the following sentence:
Jack ______________ the door.
A. has just painted               
B. paint
C. will have painted                
D. painting