question: learning to use the computer
Capitalize this past sentence correctly.
A: Learning to use the computer

question: the polymeric material is, of course, highly resistant to corrosion.
Capitalize this past sentence correctly.
A: The polymeric material is, of course, highly resistant to corrosion.

question: the cenozoic era began 65 million years ago and continues to this day. at this time any plants and animals that surround us today.
Capitalize this past sentence correctly.
A: The Cenozoic era began 65 million years ago and continues to this day. At this time any plants and animals that surround us today.