—I’m sorry, but there’s no smoking in this section on the train. —Oh, I ______ that, and I won’t again.
People _____ a long queue to buy the ticket for the concert.
—Which one of these shirts would you like? —__________. Either is OK.
I got through the written papers, but failed in the __________ examination.
Sorry, I am too busy now. If I __________ time, I would certainly go for an outing with you.
George is going to talk about the geography of his country, but I'd rather he __________ more on its culture.