Add punctuation: The enforcement of EU labelling rules is entrusted to the Member States and complaints should be addresses to the national competent authorities
A: The enforcement of EU labelling rules is entrusted to the Member States and complaints should be addresses to the national competent authorities.

Add punctuation: Low sleeper cab Key features Volvo Trucks United Kingdom Ireland
A: Low sleeper cab - Key features : Volvo Trucks - United Kingdom & Ireland

Add punctuation: There is nothing special about the base 10 notation
A:
There is nothing special about the base 10 notation.