Please choose the correct ending to complete the given sentence: Laying tile: He is kneeling down next to a pile of white square ceramic tiles and a bucket filled with grout and cement. He is smearing the floor with cement with a trowel. then he

Ending1: is wiping the pile with a ruler. Ending2: puts concrete on top of the tiles and continues to scrape the floor with a winder. Ending3: places the square tiles next to each other in a straight line, making sure they are fitted tightly together. Ending4: is showing off the dining room and the looks of success he's been trying hard at.

Answer format: ending1/ending2/ending3/ending4