c)
He had been knocking for some time before a servant opened and asked what he wanted.
I love my doll. Her name is Masha. She's got a lot of dresses,costumes. I'm keen on play with her. She becames the best friend fir me. She's very wonderful doll. The doll's got beautiful big house with four(4) rooms. Every day I sleep with doll. I like tell her a lot of stories. Now we are watching TV.
All my summer I was at home, was watching TV shows every day
1. being - participle 1 от глагола to be;
Заболев, он решил остаться дома.
2. leaving - Participle 1 от глагола to leave, часть глагола сказуемого is leaving во времени Present Continious:
Делегация покидает зал сейчас.
3. published - Part.2 от гл. to publish; в предложении - определение;
illustrated - Part.2 от гл. to illustrate; часть глагола-сказуемого are illustrated в Present Simple,
Passive Voice.
Книги, напечатанные для детей, хорошо проиллюстрированы.