question: all you need is a film projector, a wall and a white sheet.
Capitalize this past sentence correctly.
A: All you need is a film projector, a wall and a white sheet.

question: if you are elderly or have fragile skin, it is important to try and prevent a skin tear occurring.
Capitalize this past sentence correctly.
A: If you are elderly or have fragile skin, it is important to try and prevent a skin tear occurring.

question: using the tanita software, you can comfortably analyse and evaluate your results on your own pc.
Capitalize this past sentence correctly.
A: Using the Tanita software, you can comfortably analyse and evaluate your results on your own pc.