question: it's a raid? files - a pedestrian in the network
Capitalize this past sentence correctly.
A: It's a RAID? files - A pedestrian in the network

question: all manuals on trumpet playing emphasize the necessity of practise and hard work! witnesses from that time testify though that it was an illusion to be able to play all trumpet tones in tune.
Capitalize this past sentence correctly.
A: All manuals on trumpet playing emphasize the necessity of practise and hard work! Witnesses from that time testify though that it was an illusion to be able to play all trumpet tones in tune.

question: these are the words you often think when you encounter operating system crash. os crash can be disastrous because you might end up losing all files or even complete data from your hard disk.
Capitalize this past sentence correctly.
A: These are the words you often think when you encounter operating system crash. OS crash can be disastrous because you might end up losing all files or even complete data from your hard disk.