Original Questions:
I sat outside in the shadow.
My school professors were friendly.
I work like a waitress on Saturdays.
I go to my work by bicycle.
I work in a finance company.
Answers:
I sat outside in the shade.
A shadow is made by your body or your hand and is too small to sit in. If it’s too hot, you sit in the shade (made by something bigger – a building or a tree, for example).
My school teachers were friendly.
Only universities have professors or lecturers. Schools have teachers.
I work as a waitress on Saturdays.
In work like, like means similar to e.g. I work like a slave. To tell someone your position at work, use as.
I go to work by bicycle.
You go to work, without my, your, his etc.
I work for a finance company.
Use in to say where exactly you work in a company, e.g. in the accounts department. To tell someone about your employer use for.
sir,when do we use work “with” some firm or an institution?or is it used only when addressing people..eg-iv been working with his team since 9 years.
@Pradnya: I don’t think you can use “with” in the former sense.