..............., you won't be successful.
A.Unless you know who you are
B.If you knew who you were
C.Unless you know who are you
D.If you knew who were you

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
It was an amazing victory as it was only the second time _______ in a marathon.
A.she had competed      
B.for her to compete
C.she competes          
D.of competing

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
When she __________ her mistake, she apologized.  
A.realized 
B.realize    
C.has realized    
D.was realizing

I don’t know what to do with my old typewriter, but __________ away seems wasteful.
A.throw   
B.throw it
C.thrown          
D.throwing it

Compost / can / made / household / garden waste / .
A.
B.
C.
D.

A.technology    
B.photography        
C.entertainment    
D.diversity

A.sound
B.around
C.about
D.through

Nowadays, young people want to have an independent life. They want to live and work independently to support themselves.
A.sharing
 
B. working
C.dependent
D.relaxing

We / dependent / nature / cannot survive ourselves / without wildlife
A.As we are dependent on nature and we cannot survive ourselves without wildlife.
B.We dependent on nature and therefore cannot survive ourselves without wildlife.
C. We are dependent on nature and so cannot survive ourselves without wildlife.
D.We are dependent on nature and cannot survive ourselves without wildlife.

III. Mark the letter A, B, C, or D on your answer sheel to indicate the correct answer to each of the following questions.
If orders keep coming in like this, I'll have to _______ more staff.
A.add in              
B.give up      
C.take on            
D.gain on