How to find people to do a little questionnaire here?

Just start a thread entitled Are These Sentences Correct? You'll have no shortage of native speakers opining, but very few of them will agree.

Whatever you do, don't call the thread Are These Sentences Fine? because you'll never hear the end of it.

Izzy has it

Thanks too for not overwhelming us as with so many homework assignments

I am interested in the questionnaire,what questionnaire ?

Request a questionary.

Just start a topic, same way you did this. Put all the sentences you want discussed in your initial post. Don't expect unanimity. Be prepared for JTT to rain fire and brimstone on everybody else, probably including you.

Yes we're waiting with bated breath, as they say