+0
Hello,

My friends …. I travelled with could all speak Chinese.

I can use "whom" for the blank. How about "who" ?
Comments  
Hi,

My friends with whom I travelled could all speak Chinese (formal).

My friends who I travelled with could all speak Chinese (colloquial).

Regards
She left her purse in the room where / in which she holds her meetings.

Are where and in which both correct? Should I use any commas?
Students: Are you brave enough to let our tutors analyse your pronunciation?
Hi,

She left her purse in the room where she holds her meetings.

No comma is needed.

Regards
Thank you.

How about this one?

The girl who, whom, that, ¢ I’m sharing the flat with is very ...

is it ok?
The notebook whose cover I tore was Fred's.

How can I use "of which" in this one?
Teachers: We supply a list of EFL job vacancies
The notebook, the cover of which I tore, belonged to Fred (or was Fred's).