Problem: How does the next paragraph end?

Several people are preparing to play volleyball on the beach. the camera
A: zooms out and the people begin to play the game, tossing the ball back and forth to each other.

Problem: How does the next paragraph end?

A man is talking while holding a tennis paddle. he
A: shows the different moves and strategies used for hitting a ball.

Problem: How does the next paragraph end?

How to make solar cells 
Obtain 2 equal-sized glass plates. 
Plates of the size used as covers for microscope slides would be ideal. 
Clean both surfaces of the plates with alcohol.
A: Once the plates are cleaned, handle them only by the edges. Test the plate faces for conductivity.

Problem: How does the next paragraph end?

How to potty train pet rats 
Start by saving a tablespoon of droppings out of your rat's old cage. 
Set it aside to put in the litter box, making sure the spoon carries no scent that could distract your rat from the litter box. 
Clean your rat's cage thoroughly.
A:
Put in fresh bedding and disinfect any toys or houses that might have dropping on them. Take a small, shallow box and put it in the corner where your rat generally does his duty.