Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in the following questions. 

They will cut off the electricity unless you don't pay the electricity bill.

                        A          B                             C                                        D

A. should                  

B. must                     

C. had                              

D. ought 

A. having no disasters                        

B. likely to have disasters 

C. have very few disasters                 

D. have few disasters 

A. In spite            

B. Although           

C. However                      

D. Despite  

A. skins               

B. roots                        

C. stems                  

D. leaves 

A. and                   

B. but                       

C. So                                

D. or 

A. Certainly 

B. That's OK 

C. Thank you

D. I don't care