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

(A) When the chemicals (B) inside a cell (C) no longer produce ions, the cell stops (D) to function.

A. I think so                                                                

B. I feel very excited

C. Thank you. Hope you will drop in                  

D. Of course not, it’s not costly

A. pulled              

B. dropped                    

C. pushed             

D. threw

A. I promise                

B. No, not yet                   

C. Sure. I’d be glad to help               

D. You’re welcome

A. tour                        

B. travel                       

C. trip                             

D. circuit

A. reduced            

B. altered                       

C. resolved           

D. devoted

A. Alike many finds                                                  

B. It was like many finds

C. Many alike finds                                              

D. Like many finds

A. spins                

B. is spinning                          

C. would be spinning              

D. were spinning