Please capitalize where necessary: the main industries are food, electronics and transportation industries.
A: The main industries are food, electronics and transportation industries.

Please capitalize where necessary: use: tapeworms, group planting.
A: Use: tapeworms, group planting.

Please capitalize where necessary: the closest airport for pettneu am arlberg is:
A: The closest airport for Pettneu am Arlberg is:

Please capitalize where necessary: my nephew never described any specific car, but this was a long time ago and my memory may be faded. i seem to recall him saying he 'collected' cars when he was 'big.'
A:
My nephew never described any specific car, but this was a long time ago and my memory may be faded. I seem to recall him saying he 'collected' cars when he was 'big.'