1.

A few years back, passengers waited in long queues to get a ticket, but now they can buy them from anywhere using their mobile phones.

A. A few years back, passengers waited in long queues to get a ticket, but now they can buy them
B. A few years back, passengers waited in long queues to get a ticket, but now they can buy one
C. A few years back, passengers will have to wait in long queues to get a ticket, but now they can buy one
D. Sometime before, passengers were to wait in long queues for their tickets, but now they can buy
Answer» C. A few years back, passengers will have to wait in long queues to get a ticket, but now they can buy one


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