"Я не уверен, что Анна знает ответ на этот вопрос."

Translation: I am not sure that Anna knows the answer to this question.

[daadaadaaren]

i think using ‘if’ as the conjunction here is more natural in english than ‘that’

[BenCostell3]

That would be"... знает ли Анна ответ..."

[thequeerqueen]

Me too. Are you a native English speaker?

[Theron126]

I am, I don't know that I'd say it's more natural but "if" works to, at least in informal English.

[Jade281056]

To know if it is correct, simply remove the negation: "I am sure if Anna knows..." vs "I am sure that Anna knows..."

[TheFinkie]

I agree. Reported Dec2018

[CalebEvers]

I always have a hard time with these listening exercises that have Анна, i put она and it marks it wrong

[ChromateX]

Pay attention to the stressed vowel: "Anna" stresses the first syllable and "она" stresses the last.

[Rumata_]

Me too. A native. )))

[CapitaoPacoca]

Анна. Stress on first A.
онA. Stress on second А.

[tzufit238]

"I am not sure Anna knows the answer to that question." Should be right. Right? I reported it

[alkajugl]

The word "that" is not necessary in English sentences like this. Indeed, that fact has been recognized by Duo in other exercises Also, Duo has omitted "что" in many Russian sentences where I would have expected to see it.

[NicolasBou855167]

The что before referring to Anna is likely why they're insisting on "not sure that".

[Wer_]

Please dont use this name it sounds like the pronoun

[VBP86]

Why isn't ли used here?

[KruzKalke]

It seems to me that that would be "I am not sure /if/ Anna knows the answer to this question."

[SteinBauge]

The sentences are geting too complex for me to construct. it takes too much time, and it is a waste of time to sit here constructing wrong phrases and sentences. So i have started just typing something to get the correct sentence.. time to try another method.

[BenCostell3]

I agree this is long. The best thing to do is to break it into parts.
Я не уверен...I am not sure

Что Анна знает ответ....that Anna knows the answer

Ответ на этот вопрос...knows the answer to this question.

[TheFinkie]

I hate to tell you this, sir, but in real life Russians do actually use long sentences like this. It's kinda part of learning a language.

[nullusaum]

The sentence length is adequate at this level of learning. You might be progressing the tree too fast. Consider going back and repeating lessons event though the next steps are already available. When you arrive here next time you may find this exercise to be easier.

[Ron304908]

Marked wrong for она.

[Ron304908]

For about the 10th time in this course она или Анна. It is just not clear audibly

[Lilalino]

я не уверен, что она знает ответ на этот вопрос - If you pronounce "Anna" like "Ona" this should be considered correct as well

[Norrius]

They are pronounced differently. А́нна, она́.

[curtkobain]

Why is "unsure" not accepted here?

[a22brad22]

I think that would be one word, неуверен(ный).

[ChromateX]

"Я не уверен(а), что я понимаю." Is that common for assistant apps when they don't pick up on what you say?