Are theses connectors right here?
.As/ Since/ Because...I got late , I had to take a taxi.
My parents never like my friends .independently(?).who they are
Tress produce oxygen. Also, they provide habitat for animals.
He wasn't competent , ...so,. He lost his job.
Factories pollute the air so government must oblige ....
I think commas are important but I am not sure which must use commas and which cannot
Thank you very much