How long\ since when have they been doing it ?

1 morgan \ practise the piano \ 2hours

2 the children \ listen to rock \ four o'clock

3 joe \ not \ learn \ guitar \ long

4 ken \ surf \ midday

5 the friends \ talk on the phone \half an four



How long have they been doing it?
Morgan practised the piano for two hours everyday.
The children listened to rock at 4 o'clock
Joe doesn't learn guitar for long.
Apres je sais pas si c'est exactement ce que tu cherches vu le manque de details...