question: some young research students in the audience heckled todd, presumably they considered his mathematics old fashioned.
Capitalize this past sentence correctly.
A: Some young research students in the audience heckled Todd, presumably they considered his mathematics old fashioned.

question: description: stack the burger fixings in the right request to gain tips.
Capitalize this past sentence correctly.
A: Description: Stack the burger fixings in the right request to gain tips.

question: if you know the name of wrong dll like dwm.exe, choose free download--saving money.
Capitalize this past sentence correctly.
A: If you know the name of wrong DLL like dwm.exe, choose Free download--saving money.