Merry (go) to the shop My friends (play) on the piano

1. a) Mary goes to the shop every time she needs to buy something. b) My friends play the piano twice a day.

2. a) Mary is going to the shop right now. b) Can you hear this terrible noise? My friends are playing the piano.

3) a) Mary was going to the shop for some milk when she met her brother. b) They were playing the piano when their furious neighbour knocked at their door.

4) a) Next Saturday Mary will be going to the shop at 9 a.m. b) When we come to their place next Wednesday evening they will be playing the piano.