John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we ____ each other a couple of times before that.
Who _____ to school earliest in your class every morning?
I’m sure I _____ her four years ago.
An unexpected heavy rain caused severe flooding, and the water _____ all the time.
_____ a noise just then?
Great changes _____ in the last twenty years in China.