Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to test if a dish is microwave safe [title] Fill a cup with water. [step] To test if a dish is microwave safe, you can put it in the microwave with a cup of water. Find a glass or cup that is microwave safe, and fill it three-quarters of the way with water.

Ending1: There should be a line of water running vertically through the dish. [substeps] If the water line isn't a line of water, there is one water that runs vertically from the microwave to the kettle, and this line should be marked. Ending2: [substeps] Make sure the glass you use is microwave safe. The microwave may take a few seconds to heat up properly, so make sure you're up when the microwave starts. Ending3: Then, fill the remaining half with water. If it doesn't overflow, the water is safe to place into the microwave. Ending4: [substeps] It's important to use a cup that you know to be safe for the microwave, otherwise the test may not work. To be certain, find a cup that has the microwave safe stamp on the bottom.

Answer format: ending1/ending2/ending3/ending4