question: opting for excellent data recovery tool is best option in this case to extract and save your valuable files and folders from damaged external hard drive.
Capitalize this past sentence correctly.
A: Opting for excellent data recovery tool is best option in this case to extract and save your valuable files and folders from damaged external hard drive.

question: small-toothed - free english online dictionary based on wordnet 3.0
Capitalize this past sentence correctly.
A: Small-toothed - Free English online dictionary based on WordNet 3.0

question: one of them was to sell a secret to state institutions.
Capitalize this past sentence correctly.
A: One of them was to sell a secret to state institutions.