Can I say,
(a) They were afraid and started screaming.
(b) Their mother heard the scream of his sons.
Their mother heard some scream / screams / a loud scream from the room.
She heard the scream from the room.
(c) When he came to the junction, he saw an accident.
(d) He fell at / on / by the roadside.
(e) He cycled very fast, so his bicycle lost control.
He cycled fast until / till he lost control of it.
(e) He lost the control / He lost control of his bicycle.
(f) In the junction, he banged (into .on) the old woman and fell down the road.
(g) Her mother scolded them for being careless and naughty.
(h) He likes cycling every day.
He was cycling downhill very fast.
They had a bruises on his leg.