1-C. That is why, for example, the train stations show and announce the arrival time and platform number of the next train.That is why, for example, the train stations show and announce the arrival time and platform number of the next train.
2-C. At this moment, he is struck by an unexpected sense that he has seen the same staircase before but cannot remember when and he announces his strange deja vu experience to his wife.At this moment, he is struck by an unexpected sense that he has seen the same staircase before but cannot remember when and he announces his strange deja vu experience to his wife.
3-C. In 1966, the government announced that the country would be switching to a base-10 system for their currency five years later.In 1966, the government announced that the country would be switching to a base-10 system for their currency five years later.