1) so is correct 2) Asking is a gerund (noun, used as the subject of the sentence); it is singular, so the verb should be is . 3) Use the (this isn't, by the way, a sentence) The rest is totally confusing to me. Sorry.
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Anonymous1) Not all of us who pursue our dreams are so reckless to do something dangerous.(without 'as' before 'to' like 'so reckless as to do')I would add "as."
Anonymous2) Asking questions with negative assumptions is more likely to get you valuable information.(Is it possible to use 'Asking' as an adjective?)The