Add spaces: HardDriveCrash:Softwareorhardwareconflicts,corruptionofharddrive,re-partitioningerrors,bootsectorcorruption,harmfulvirusattacksandotherissuescanleadtocrashofMacBookAir,whicheventuallybecomesnonbooting

Answer: Hard Drive Crash: Software or hardware conflicts, corruption of hard drive, re-partitioning errors, boot sector corruption, harmful virus attacks and other issues can lead to crash of MacBook Air, which eventually becomes non booting

Add spaces: Peoplelaughedatyouifyoudidn'tlaughatReagan.

Answer: People laughed at you if you didn't laugh at Reagan.

Add spaces: Chooseoneofthegivennationalcostumesanddressupthisgirl.

Answer:
Choose one of the given national costumes and dress up this girl.