"Tu es sûr que ton grand-père t'en donnera un ?"

Translation: Are you sure your grandfather will give you one of them?

[Mister_Matthew]

Are you sure that your grandfather will give you one of them?

[LauraModesta]

Que translates to that and the provided answer left that out!

[Stick.to.it]

In English, "that" is optional in this sentence. The meaning is the same with or without it, so Duo always accepts it either way.

[MajBren]

Okay, where is the mistake? ..... my response: " are you sure that your grandpa will give one of them to you"? ... is it not the same as to say ... "give you one of them" ?

[Manuel599019]

Maybe Duo didn't like the fact that you translated grand-père as "grandpa".

[Roger866787]

Wouldnt - 'Are you sure your grandfather will give you one' be as correct as no mention is made of what will be given?

[David332970]

Yes, that is one of the many answered accepted by Duo.

[nsklaibach]

In normal speed, the last part sounds like 'donne rien'. Only when I play it slow does it become clear what it actually is. I find this one of the toughest things about the French language.

[BredaMorri1]

"your "was not included in the words provided

[ballarat]

"Tu es sûre que ton grand-père t'en donnera un ?" is not accepted.

[Marian119404]

i translated it as 'you are sure