Difference between that's all and that's final

[LAURA]

Test No. errors/inter-5 "Talk about it later", question 1

I'm not going to accept this offer that you and the company have made and that's at last.

(a) going to
(b) offer
(c) have made
(d) at last

Test No. errors/inter-5 "Talk about it later", answer 1

I'm not going to accept this offer that you and the company have made and that's final.

Correct entry: final
The error was: (d) at last

You have found the error but your entry is incorrect.
I'm not going to accept this offer that you and the company have made and that's all.
_________________________

What is the difference between that's final and that's all?
THK

[Torsten]

That's all means that this is everything you want or need.
That's final means that you won't change your mind.
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Lost_Soul]

Can I say simple "That's it" ???

[Alan]

Hi,

Yes, you could say: That's it but it doesn't really suggest the idea of finality which is needed here.

Alan
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English as a Second Language
You can read my ESL story The way you write it