Promptly or as soon as possible may be used.
You can use energy instead of matter, for, is a form of matter under some specific constrains. By moving the entire work place domain at a speed of light and applying energy there, you can avoid the usage of matter. But it is not possible in practical cases, Thus one could not use anything instead of matter.
Instead of using the word challenging you can use the word gifted, special, special gifted.
or
Will, when, why, it, can
Myself
I have a stomach ache.
mixture
are
used to be
is, it, in the past.
no "It" is not used instead of he and she...
Answer.