Re: nice to hear/see
No, that's not grammatical.
Originally Posted by aysaa
In #1, you heard sounds, words, or noises of some sort that show he's doing his homework. Perhaps he is practicing for his speech class.
In #2, you have obtained information that the homework is now complete.
It's nice to hear that Michael is doing his homework. -- This might suggest that there was a period in the past when Michael was not doing his homework regularly, and now you have information that he is now routinely doing his homework.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.