question: another form of expressing gratitude on a daily basis is sending thank you notes.
Capitalize this past sentence correctly.
A: Another form of expressing gratitude on a daily basis is sending thank you notes.

question: sothink dhtmlmenu generates robust code compatible with almost all available web browsers.
Capitalize this past sentence correctly.
A: Sothink DHTMLMenu generates robust code compatible with almost all available web browsers.

question: one difference to established translation services is that deepl translator supports a limited number of languages right now.
Capitalize this past sentence correctly.
A: One difference to established translation services is that DeepL Translator supports a limited number of languages right now.