1. Climbing up the tree, the little boy tore his trousers.
P1 обстоятельство времени
2. Being unable to sleep, she took a couple of sleeping pills.
P1 обстоятельство причины
3. The programme finished, they went to bed
P2 обстоятельство времени
4. Jack almost dropped the bag on which he had been writing.
NOT POSSIBLE
5. Excited by his words, Eliza moved along the street
P2 обстоятельство причины
6. Taking off his old shirt, he put on a new one.
Having taken off his old shirt, he put on a new one.
P1 обстоятельство времени; 2 правильных варианта
They usually take part in academic conferences.
My family is very united and we have a very good relationship. Next week we are going to spare time together.
Usually my mother does housekeeping but I keep my room clean by myself. For example now I'm laying out clothes.
They sign a contract every week.
We discussed this question yesterday.
Next week they are having practice at the factory.
Usually he does jogging in the morning. Look! He is runnig although it's an evening.
They always argue with each other: they argued yesterday, they will argue tomorrow and now they are arguing.
We always gain knowledge. We gained knowledge last year and we will gain them in the future.