question: the diesel engine is today the totally dominating power source in heavy commercial vehicles.
Capitalize this past sentence correctly.
A: The diesel engine is today the totally dominating power source in heavy commercial vehicles.

question: i tell him my troubles. 142:3 when my spirit was overwhelmed within me, you knew my path. in the way in which i walk,
Capitalize this past sentence correctly.
A: I tell him my troubles. 142:3 When my spirit was overwhelmed within me, you knew my path. In the way in which I walk,

question: carbs guide to repair and maintenance
Capitalize this past sentence correctly.
A: Carbs Guide to repair and maintenance