Get x Take

[Emanuelli]

Please, I've read some books where I could see that take (hold) and get (obtain).

Then I want to know which is the correct form:

1. Teacher, I left my book in the car. Let me take it / get it???

I've always used "take" but in one of the books I saw I couldn't have used it. Isn't it incorrect???

I've seen and heard "take", then I was wondering if you could help me.

PS: If I want to say "Nobody deserves", is it necessary to use a pronoun? Like: Nobody deserves it?

Thank you!

[Casiopea]

[1] Let me (go and) get it.
=> "get" expresses movement towards a destinantion (i.e., "go")

[2] Nobody deserves _____.
=> "deserve" is a transitive verb. It requires an object (e.g., S/he doesn't deserve that. We deserve an answer.)