Please capitalize where necessary: 4) with lock protection system.
A: 4) With lock protection system.

Please capitalize where necessary: additional types of files may also be using the ll file extension. if you are aware of any other file formats using the ll file extension, please contact us so that we can update our information accordingly.
A: Additional types of files may also be using the LL file extension. If you are aware of any other file formats using the LL file extension, please contact us so that we can update our information accordingly.

Please capitalize where necessary: he lectured there in mathematics and submitted a dissertation for his doctorate under lomnicki's supervision.
A: He lectured there in mathematics and submitted a dissertation for his doctorate under Lomnicki's supervision.

Please capitalize where necessary: 21 i find then the law, that, to me, while i desire to do good, evil is present.
A:
21 I find then the law, that, to me, while I desire to do good, evil is present.