Câu hỏi :

The word “they” in paragraph 4 refers to __________.

A. credit and debit cards

B. electronic forms of payment

C. electronic payment businesses

D. managing director of Currency Research

* Đáp án

C

* Hướng dẫn giải

Dẫn chứng: ...said electronic payment businesses are still at the stage here where they are competing against each other more so than cash

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