Choose the best answer for the following sentence:
________________ energy in a tornado is enormous. 
A. The                  
B. A                   
C. An               
D. Some

Choose the best answer for the following sentence:
While her husband was in the army, Mary _____________ to him twice a week.
A. was writing             
B. wrote              
C. was written             
D. had written

Choose the best answer for the following sentence:
According to this newspaper, John is said _______________ a new record for the longjump. 
A. to have established                
B. establishing 
C. to establish                   
D. established

Choose the best answer for the following sentence:
The writer can’t see Aunt Lucy __________. He’s having breakfast. 
A. still 
B. now 
C. often  
D. always

Choose the best answer for the following sentence:
I don't mind ___________ waiting for a few minutes.
A. keeping
B. to be kept 
C.  to keep 
D. being kept

Choose the best answer for the following sentence:
Things ______________ clear to them so that they can do the work in the way that you have told them. 
A. are making                    
B. ought to be made                       
C. have made                        
D. needn’t be made

Choose the best answer for the following sentence:
When he returned home, he found the door ____________ .
A. unlocking
B. unlocked
C. to be unlocked  
D. have unlocked

Choose the best answer for the following sentence:
If I __________ in his shoes, I ____________ the Browns.
A. am - wouldn’t invite                  
B. were - won't invite
C. were - wouldn’t invite                
D. would be - wouldn’t invite

Choose the best answer for the following sentence:
Yesterday I _________ finish the work because I was very tired. 
A. could             
B. can’t              
C. couldn’t                 
D. mustn’t

Choose the best answer for the following sentence:
Putting your thumb and ringing finger together, kissing your thumb and moving your hand away from your face is a way of ____________ that something is perfect. 
A. signing                    
B. signaling                    
C. signature                    
D. signalling