7 o'clock
They were eating ( dinner) at 7 o'clock
6 o'clock
they were playing (baseball ) at 6 o'clock
was / a bike / he / 5 o'clock / riding / at
He was riding a bike at 5 o'clock
watching TV/ / she / at / 2 o'clock / was /
She was watching TV at 2 o'clock