- help: assist and support are synonyms, so that's good.
- that: this and it are acceptable, though "it" might change the meaning slightly depending on context, but the user hasn't specified strict synonymy. Layarxxi.pw.Beautiful.virgin.japanese.girl.and....
Fourth word: "with". Alternatives could be "regarding", "concerning", "about". But "with" is a preposition here. Hmm, maybe "regarding", "in regards to", "concerning". So concerning? - help: assist and support are synonyms, so that's good
that -> this