This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to make a toy car
Clean the plastic bottle.
Take the label off the bottle. Let the bottle soak in hot water and dish soap for ten minutes.

1). This will make it easier to remove any residue left on the bottle as well as cleaning off any bacteria. Drill the two holes into each side of the bottle.;
2). Carefully peel the label off and toss it in the garbage. Once the bottle is clean, wash it one last time with a paper towel.;
3). There's no need to use vinegar, however-regular dish water will do. Cut the plastic cap into a thin cube.;
4). Wash off as many of the top and bottom stains as possible. Gently add some laundry detergent and add some ammonia or bleach to the bottle.;
The answer is:
1).