Choose the best answer for the following sentence:
I always feel safe and _________ in my family.
A. secret
B. confidential
C. secure
D. protective

Choose the best answer for the following sentence:
The Vietnam football team and the Thai team have always _____________ been in the recent Sea Games.
A. friends
B. participants
C. enemies
D. rivals

Choose the best answer for the following sentence:
If you are looking for volunteers, count me _________. 
A. off                      
B. in 
C. down     
D. out

Choose the best answer for the following sentence:
A woman who ________________ after other people's children is a nanny.
A.  looks  
B. is looking         
C.  looking  
D.  looked

Choose the best answer for the following sentence:
He was especially interested in such _____________ work, and had recently helped to organize the first Brazilian school for deaf-mutes at Rio de Janeiro.
A. humanitarian
B. human  
C. humanity              
D. humanistic

Choose the best answer for the following sentence:
The little girl asked what _________________ to her friend.
A. has happened                                                         
B. happened 
C. had happened                              
D. would have been happened

Choose the best answer for the following sentence:
If people paid a little more attention to the environment, the Earth ____________ greener.  
A. had been                    
B. would be                     
C. would have been                     
D. will be

Choose the best answer for the following sentence:
A clever dog can recognize its owner's ____________ among hundreds of strangers'. 
A. sound                  
B. whistles                   
C. noise                     
D. movement

Choose the best answer for the following sentence:
Would you mind not __________________ the radio until I’'ve finished with this phone call? 
A. turning on                
B. being turned on  
C. to turn on              
D. to be turned on

Choose the best answer for the following sentence:
It gets ________________ when the winter is coming. 
A. cold and cold                          
B. the coldest and coldest
C. colder and colder                     
D. more and more cold