May I see your ticket, please? I think you ________ in my seat.—Oh, you’re rightMy seat is upstairsI’m terribly sorry

__________! Let’s go there and have a look at it.

Let’s _________ now.

Mr. Jiang, as ______ elderly man, took part in the Special Games for ____ elderly, and finished _______ second in the race.

It was not until dark ________ he found ________ he though was the correct way to solve the problem.