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Although lots of companies sell their merchandise online, I think we (         ) a novel way of shopping.

 

(A) develop

(B) have developed

(C) were developed

(D) are developing

 

답 : (B)

 

이 문제가 무엇을 묻는 문제인지 잘 모르겠습니다ㅠㅠ

(A), (B), (D) 도 될 것 같은데,,ㅠㅠ