If modern technology didn't exist, we will never have these precious pictures. A. modern technology                         B. exist C. will                                                 

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

If modern technology didn't exist, we will never have these precious pictures.\

A. modern technology        
B. exist
C. will           
D. these

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Chọn đáp án C

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