Everybody was nervous before the examination. (до)
I usually have lunch at 1.30, and after lunch I go back to work. (после)
The film was very boring. We left before the end. (до)
Ann went to evening classes to learn Spanish. She learnt a lot during the course. (за время)
My aunt and uncle lived in London before they went to Australia. (до)
Somebody broke a window during the night. Did you hear anything? (во время)
Are you going home after the concert? 一 No, we’re going to a restaurant. (после)
Always look both ways before you cross the road. (до)
Don’t forget to close the windows before you go out. (до того, как)
I went to sleep while I was watching television. (во время)