Meaning of 'for sure'

[peter]

Test No. express/elem-4 "For Good", question 2

You've no need to worry I promise you they'll arrive on Thursday for sure.

(a) absolutely
(b) positively
(c) definitively
(d) definitely

Test No. express/elem-4 "For Good", answer 2

You've no need to worry I promise you they'll arrive on Thursday definitely.

Correct answer: (d) definitely
_________________________

why not absolutely?

peter

[Alan]

This means that is definite.
_________________
English as a Second Language
You can read my ESL story Saying It Twice