I cant understand that why in Statement 2 we use "will talk " instead of talk. Aren't parallel sentences are used when "unless" is used. If not , plz guide me about the structure of sentence when it has "unless" in it???

The answer here 'talk' is absolutely correct. When you use unless, the verb comes in simple present tense. So, words like will, would, shall, had, have, etc. will not come here. I hope the answet is relevant. I actually didn't get your question correctly. I hope tha my answer is relevant. If still you have any query, post it on my email address rileymagnusson@gmail.com

Hello dear ,
I didn't understood your query but still in the second sentence where "unless" is present there the word "talks" is correct because whenever in any sentence the word "unless" comes then words like will , shall , would doesn't come because the words change to simple present so the simple present form of talk is "talks" not "will talk".
Hope you understand well.
Regards

The answer here 'talk' is absolutely correct. When you use unless, the verb comes in simple present tense. So, words like will, would, shall, had, have, etc. will not come here.

I didn't understand your question

Hey milan. Completely copied me. Not good.

talk is correct