题目内容
It’s reported that customers could start using their phones to buy ______ coffee in some stores, which is ________ first pay-by-phone practice in the USA.
A. a; the B. /; / C. a; / D. the; the
A
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题目内容
It’s reported that customers could start using their phones to buy ______ coffee in some stores, which is ________ first pay-by-phone practice in the USA.
A. a; the B. /; / C. a; / D. the; the
A