input question: Fix spacing: UnsureaboutwhichtypeofFHfileyouhave?Doyouwanttoknowexactlywhatitis,whocreatedit,andhowtoopenit?

output answer: Unsure about which type of FH file you have? Do you want to know exactly what it is, who created it, and how to open it?
Problem: Justmakesurethatyouuseweatherproofmaterialswhichcannotbeharmedbyrain,snoworiceifyourdecorationisnotprotectedbyaroof.
What's a sentence that uses these characters?
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Just make sure that you use weatherproof materials which cannot be harmed by rain, snow or ice if your decoration is not protected by a roof.
Add spaces: CertEnrollCtrl.exemissing/notfounderror:UnavoidablyPCmaygetinfectedbyviruslikeTrojanDownloader:Win32/Agent.PHorcontrolledbymalwarelikeSWFKitExpress.AftertheyareremovedbyantivirussuchasZoneAlarmInternetSecuritySuite,theinfectedfileCertEnrollCtrl.exewouldbedeletedaswellsothatmissingproblemisfound.

Answer: CertEnrollCtrl.exe missing / not found error: Unavoidably PC may get infected by virus like TrojanDownloader:Win32/Agent.PH or controlled by malware like SWFKit Express. After they are removed by antivirus such as ZoneAlarm Internet Security Suite, the infected file CertEnrollCtrl.exe would be deleted as well so that missing problem is found.
Intheirworks,MarxandEngelsrepeatedlyshowthatthebourgeoisieareconnectedwiththeseinstitutionsbythousandsofthreads.

In their works, Marx and Engels repeatedly show that the bourgeoisie are connected with these institutions by thousands of threads.
[Q]: [Furthermore,Leitztreatsoneofthecommonprovisionalmodelsofthechronologyasifitwereahistorical"truth".]
[A]: [Furthermore, Leitz treats one of the common provisional models of the chronology as if it were a historical "truth".]
Problem: Add spaces: Cape:Workedfromtopdown,backandforthonneedletowardsmidfront.

Spaces added:
Cape: Worked from top down, back and forth on needle towards mid front.