Problem: How does the next paragraph end?

Man is kneeling on the floor holding carpet tiles. man
A: takes out the plastic from the plastic tiles and put them in the floor.

Problem: How does the next paragraph end?

How to diagnose a non working air conditioning in a car
Turn the air conditioning on while the car is running.
The air conditioner won't run properly unless your engine is running. The best setting for diagnosis is " fresh air " (not recirculated) with the air blowing out of the center vents in the dash and the ac turned on.
A: Start with the fan speed turned to its highest setting. If your car has a " max ac " setting, select that option.

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 use a cement mixer
Pour approximately 1 gallon (3.79 l) of water into the concrete mixer.
Be sure to use the correct amount of water per the cement mix instructions given by your specific mix label. If there is too much water added, the cement mix will come out too thin, become unmanageable, and not dry properly.
A:
If there is not enough water, the mix will become too thick, it will not combine thoroughly, and will become unusable. Open the cement mix bag from the top and pour the entire contents into the cement mixer.