Add spaces: Thesidepieceshavebeendevelopedtokeepasnarrowaprofileaspossible,andtoimprovethefittingagainsttheearwhenusingearmuffsatthesametimemakingthespectaclesextracomfortabletowear.

Answer: The sidepieces have been developed to keep as narrow a profile as possible, and to improve the fitting against the ear when using ear muffs at the same time making the spectacles extra comfortable to wear.
SupportexternalUSBCD-romdrivesSupportmultipleCD-romsorDVD-roms(butonlyaudioCDisrecognizable)."

Support external USB CD-rom drivesSupport multiple CD-roms or DVD-roms (but only audio CD is recognizable)."
[Q]: [Interestingly,theresearcherspredictthatAIwon'tbeatthebesthumanGoplayersuntilabout2028.]
[A]: [Interestingly, the researchers predict that AI won't beat the best human Go players until about 2028.]
Problem: Add spaces: ItwasfromherthatAleksandrovlearntFrenchandalsoGerman.

Spaces added: It was from her that Aleksandrov learnt French and also German.
This text is missing some spaces, please add them: ItakeapictureofAttila'sthrone.AttilaTheHundidindeedroamthemainlandbackinthe5thcentury,butIdoubthehaseverusedthisuncomfortablestonechair.
I take a picture of Attila's throne. Attila The Hun did indeed roam the mainland back in the 5th century, but I doubt he has ever used this uncomfortable stone chair.
[Q]: ["ThePresentation**.pptxisincomplete.]
[A]:
["The Presentation **.pptx is incomplete.]