Add spaces: AshortintroductiontothelifeandworkofGustafFröding

Answer: A short introduction to the life and work of Gustaf Fröding

Add spaces: *SomeLDfileextensionformatscanbeopenedinbinaryformatonly.

Answer: * Some LD file extension formats can be opened in binary format only.

Add spaces: Thevoicegivesexpressiontothemovement,andcanhelptoreinforcethem.

Answer:
The voice gives expression to the movement, and can help to reinforce them.