1. 'I'm sorry', he said, 'I thought it was my room.' - почему запятая не внутри кавычек('I'm sorry,' he said, 'I...')? Получается конфликт с тем, что написано на странице 463:
2. 'Your mother will be suprised', she said. - аналогично. Почему запятая не внутри кавычек?If a reporting expression follows a piece of direct speech, we usually put a comma instead of a full stop before the closing quotation mark.
'I don't like this one bit,' said Julia.
3. Altogether, she decided, marriage was a bit of a mistake. - зачем здесь обособляется she decided? Для меня более понятно было бы без запятых: Altogether she decided that marriage was a bit of a mistake.
4. We can use though as an adverb (often at the end of a sentence), to mean however. - здесь непонятно для какой цели запятая.
5. It was a large house, situated near the river. - в онлайн-словарях с примерами не нашел, чтобы перед situated была запятая.
6. I think we ought to start at six, while the roads are empty. - аналогично перед while
7. Besides can be used like as well as (see 78), when we add new information to what is already known. - аналогично перед when
8. We did an experiment in the chemistry lesson, to see if you could get chlorine gas from salt. - а здесь зачем запятая перед to see?