---Jackson was late for Mr. Black’s literature class this morning. ---_____? As far as I know, he never came late to class.
It was not until everybody was present __________the party started.
If I had tried my best last term, I ________more progress then.
---The Bird's Nest, isn't it?---Yes. It's ___________we visited during our stay in Beijing.
---Did you have _______fun in Australia? --- Sure. It was ___________ unforgettable experience.
--- How is the project going? --- Fairly well. We have ______________the best solution.