Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to prepare filter coffee [title] Fill the machine with water. [step] Most coffee makers will have a water reservoir which you'll need to fill before brewing. Only pour in as much water as you'd like to brew, since the machine will continue to brew until the reservoir is empty.

Ending1: A larger machine may be able to handle more water. [substeps] You can refrigerate any leftover water in the system. Ending2: [title] Rotate the machine clockwise to pour the water. [step] With your paper cup, scoop the water out of the reservoir. Ending3: If your machine doesn't have a water reservoir, fill the biggest part of the machine with water. You'll need to water the big part of the machine first, and then add water later. Ending4: [substeps] Always use clean filtered water for the best taste. Filtered water can also prevent mineral deposits from building up on the machine's tubing.

Answer format: ending1/ending2/ending3/ending4