Add punctuation: Ergometers of commercial quality are best for professional use at gyms and for a very long operating life Semiprofessional and professional ergometers are also excellent for home use due to their highgrade material quality
A: Ergometers of commercial quality are best for professional use at gyms and for a very long operating life. Semi-professional and professional ergometers are also excellent for home use due to their high-grade material quality.

Add punctuation: Real changes in price of transport 1990100 by mode of transport DISCONTINUED  StatBank Denmark  data and statistics Accessing Data   Please wait
A: Real changes in price of transport (1990=100) by mode of transport (DISCONTINUED) - StatBank Denmark - data and statistics Accessing Data ... ... Please wait

Add punctuation: The working group also prepares meetings for the dialogue on terrorism which the EU is conducting with third countries
A:
The working group also prepares meetings for the dialogue on terrorism which the EU is conducting with third countries.