Difference between accept and agree

[vanessa]

Test No. errors/inter-12 "Some Advice", question 4

I had a big surprise this morning because in the post was an invitation to a wedding and of course I've accepted to go.

(a) had
(b) this morning
(c) invitation
(d) accepted

Test No. errors/inter-12 "Some Advice", answer 4

I had a big surprise this morning because in the post was an invitation to a wedding and of course I've agreed to go.

Correct entry: agreed
The error was: (d) accepted

Your answer was: n/a
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why a have to use agree?... is not supossed tha you accept an invitation?

[Mister Micawber]

.
Hi Vanessa.

Yes, you do 'accept an invitation' (accept + noun), but you cannot (X) 'accept to go', because accept does not take an infinitive object. 'Agreed' does take the infinitive, however.

It is not a matter of the meaning, but of the grammar-- how each word can work in a sentence.
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Native English teacher at Mister Micawber's