question: preparations and charges for fire-extinguishers; charged fire-extinguishing grenades (excl. full or empty fire-extinguishing devices, whether or not portable, unmixed chemically undefined products with fire-extinguishing properties in other forms)
Capitalize this past sentence correctly.
A: Preparations and charges for fire-extinguishers; charged fire-extinguishing grenades (excl. full or empty fire-extinguishing devices, whether or not portable, unmixed chemically undefined products with fire-extinguishing properties in other forms)

question: pick the nice dress and accessories which suits her best.
Capitalize this past sentence correctly.
A: Pick the nice dress and accessories which suits her best.

question: eating ginger every day – this also repels the mosquitoes.
Capitalize this past sentence correctly.
A: Eating ginger every day – this also repels the mosquitoes.