Please capitalize where necessary: scr = selective catalytic reduction
A: SCR = Selective catalytic reduction
Q: the first cell phone i got was one of the first ones with color screens.

A: The first cell phone I got was one of the first ones with color screens.
Q: this contains on page 243 the following passage:
A: This contains on page 243 the following passage:
Problem: to begin your free file analysis, simply drag-and-drop your exs file inside the dotted lines below, or click "browse my computer" and select your file.
Can you repeat this sentence, but capitalize it?
Answer: To begin your free file analysis, simply drag-and-drop your EXS file inside the dotted lines below, or click "Browse My Computer" and select your file.
Text: a second opera the harvest, which had a red indian theme, had been performed at the little theatre, palace of the legion of honor in san francisco on 14 and 17 october 1933.

Correct capitalization: A second opera The Harvest, which had a Red Indian theme, had been performed at the Little Theatre, Palace of the Legion of Honor in San Francisco on 14 and 17 October 1933.
Q: close each package well and put them in a dish.
A:
Close each package well and put them in a dish.