question: all products are published in the 22 official languages of the european union and are fully accessible on the website.
Capitalize this past sentence correctly.
A: All products are published in the 22 official languages of the European Union and are fully accessible on the website.

question: the flask was washed with a small volume of acetonitrile, which was also transferred to the tubes.
Capitalize this past sentence correctly.
A: The flask was washed with a small volume of acetonitrile, which was also transferred to the tubes.

question: you can enjoy them anytime without dvd discs, or burn them to blank discs by burning software.
Capitalize this past sentence correctly.

A: You can enjoy them anytime without DVD discs, or burn them to blank discs by burning software.