I went to see Professor Johnson, only ______ that he had left the city the night before.

________ me what you wanted to know, I should not have wasted my time talking so much with you.

go by _______train, you can have a quite comfortable journey, but make sure you get_______fast one.

They _____ their failure on their coach.

Where did you ______ our English teacher? –It was in the supermarket ______ I bought moon cakes.