1)I saw her when she was playing tennis
he found us when we were climbing a tree.
she noticed the boys who swimming across the river.
2)I was heard girl who was crying
she was observed playing the violion.
you were noticed a girl running away.
3)вот эт я непоняла
4)the weather being very cold,she had to stay at home
her daughter having fallen ill,she sent for the doctor.
