Please capitalize where necessary: he was, however, glad to discuss the work of others with them.
A: He was, however, glad to discuss the work of others with them.

Please capitalize where necessary: he published a paper with andronov on dynamical systems in 1932 but the big shift in pontryagin's work in 1952 occurred around the time of andronov's death.
A: He published a paper with Andronov on dynamical systems in 1932 but the big shift in Pontryagin's work in 1952 occurred around the time of Andronov's death.

Please capitalize where necessary: 5 lest they drink, and forget the law, and pervert the judgment of any of the afflicted.
A: 5 Lest they drink, and forget the law, and pervert the judgment of any of the afflicted.

Please capitalize where necessary: you can start with bird watching, because birds are the easiest to see. using the naked eye you can locate and then identify the species and observe their behaviour.
A:
You can start with bird watching, because birds are the easiest to see. Using the naked eye you can locate and then identify the species and observe their behaviour.