题目内容:
E-tickets will be used for high-speed trains ________ the country in 2019. Passengers can enter the station by simply using their ID card.
A.beside
B.before
C.across
D.for
参考答案:
答案解析:
E-tickets will be used for high-speed trains ________ the country in 2019. Passengers can enter the station by simply using their ID card.
A.beside
B.before
C.across
D.for