Instead of using the word challenging you can use the word gifted, special, special gifted.
Substitute or exchange can be used instead of replace.
Meaningless,Regulation or act,Formal,Rigid observation of rules and regulations,
The United States uses the word "fall" instead of "autumn" to refer to the season.
Reliable.
The feeling of completing a challenging task was truly satisfying.
or
Will, when, why, it, can
I have a stomach ache.
Myself
mixture
are
used to be
is, it, in the past.
no "It" is not used instead of he and she...
Answer.
Another word you can use instead of obituary is "death notice" or "memoriam."
Use the word "how" when asking "in what manner". Use the word "why" when asking "for what reason".