Problem: Add spaces: 9Davidlivedinthestronghold,andcalleditDavid'scity.DavidbuiltaroundfromMilloandinward.

Spaces added: 9 David lived in the stronghold, and called it David's city. David built around from Millo and inward.
This text is missing some spaces, please add them: Ausercanselectthedesirednodeusingmouse.
A user can select the desired node using mouse.
input question: Fix spacing: "Ah,ifitwerebutalittlepussy-cat!"saidshe;buttherosetree,withitsbeautifulrosecametoview.

output answer: "Ah, if it were but a little pussy-cat!" said she; but the rose tree, with its beautiful rose came to view.
Problem: Verystrongcosmic,reflectedmacro-impulsesarepenetratingmankindandhavealreadybroughtaboutanenormouschangeinitsmentality.
What's a sentence that uses these characters?
-
Very strong cosmic, reflected macro-impulses are penetrating mankind and have already brought about an enormous change in its mentality.
Add spaces: PesticideActionPlanIIcallsfortheapplicationfrequencyonfieldstobebelow2beforetheendof2002.

Answer: Pesticide Action Plan II calls for the application frequency on fields to be below 2 before the end of 2002.
This text is missing some spaces, please add them: IfyouknowthenameofwrongDLLlikemscpxl32.dLL,chooseFreedownload--savingmoney.
If you know the name of wrong DLL like mscpxl32.dLL, choose Free download--saving money.