question: make a big impression with these enormous letters, also known as ascii text, made out of normal keyboard characters.
Capitalize this past sentence correctly.
A: Make a big impression with these enormous letters, also known as ASCII text, made out of normal keyboard characters.

question: check rates and availability for shenzhen pavilion hotel. then proceed to booking.
Capitalize this past sentence correctly.
A: Check rates and availability for Shenzhen Pavilion Hotel. Then proceed to booking.

question: a much better alternative to an always-ripping plastic bag.
Capitalize this past sentence correctly.
A: A much better alternative to an always-ripping plastic bag.