Add punctuation: Is it an expensive electronic item or some other material or tangible item Perhaps
A: Is it an expensive electronic item, or some other material or tangible item? Perhaps.

Add punctuation: For periods this has caused repression and unfair treatment but it also has caused development activities and views that could give us some inspiration here in Denmark
A: For periods this has caused repression and unfair treatment, but it also has caused development, activities and views that could give us some inspiration here in Denmark.

Add punctuation: Unsure about which type of WDH file you have Do you want to know exactly what it is who created it and how to open it
A:
Unsure about which type of WDH file you have? Do you want to know exactly what it is, who created it, and how to open it?