Choose the best answer for the following sentence:
We were surprised at _______________________ going on a trip alone. 
A. her            
B. she                  
C. hers                
D. A or C

Choose the best answer for the following sentence:
They sell all kinds of rubbish now, but ________.
A. they once sold good handmade furniture
B. they have once sold good handmade furniture
C. they were once selling good handmade furniture
D. they would once be selling good handmade furniture

Choose the best answer for the following sentence:
Sea Shepherd and other anti-whaling protesters have continually harassed the Japanese whaling fleet in an effort to ______________ with Tokyo's hunting season, during which it takes hundreds of minke whales in the Antarctic.
A. participate                      
B. interfere                   
C. intrude                             
D. invade

Choose the best answer for the following sentence:
A penalty shot is _______________ when a major foul is committed inside the 5-meter line.
 
A. prevented                  
B. awarded                  
C. committed                 
D. ranged

Choose the best answer for the following sentence:
Everybody agrees that no more staff _______________.
A. should employ                      
B. should not be employed
C. will not be employed                   
D. will be employed

Choose the best answer for the following sentence:
“Where did you get the name Harrison?”
“I was named _____________ my grandfather.” 
A. after
B. of 
C. with  
D. from

Choose the best answer for the following sentence:
That man has two _________________________ . 
A. brother-in-law                
B. brothers-in-law 
C. brother-ins-law                  
D. brother-in-laws

Choose the best answer for the following sentence:
Pessimists think that many large corporations will be ___________ in the future.
A. wiped away 
B. wiped out 
C. pulled away  
D. pulled out

Choose the best answer for the following sentence:
If you ___________ as I told you, you __________ sorry now. 
A. did - would not be                    
B. had done - had not been
C. do - would not be                
D. had done - would not be

Mọi phép dời hình cũng là phép đồng dạng với tỉ số $k$ bằng:
A. $k=1.$ 
B. $k=-1.$
C. $k=0.$
D. $k=2.$