question: crash tests confirm the benefits of the new cab structure.
Capitalize this past sentence correctly.
A: Crash tests confirm the benefits of the new cab structure.

question: and then suddenly people will do it. i hope that interdependence will become more interesting than independence.
Capitalize this past sentence correctly.
A: And then suddenly people will do it. I hope that interdependence will become more interesting than independence.

question: the inflammation primarily affects the last part of the small intestine and to a lesser extent the beginning of the large intestine.
Capitalize this past sentence correctly.
A: The inflammation primarily affects the last part of the small intestine and to a lesser extent the beginning of the large intestine.