Shadow work: Any labor that consumers pay to make purchased goods available. Which of the following are shadow jobs? ['Xiao Sun came to the restaurant to eat, and the boss told him that most of the waiters have been on vacation these days. The customer needs to order the meal by himself and hand him a pen and a menu.', "Xiao Li's son is about to be born. He hastened to take the time to take out the baby stroller from his colleague Pharaoh and repair it. The car is completely new and very useful.", 'My father finally agreed to buy two goldfishes for Xiaoming. Xiaoming was so happy that he collected more than a dozen pages of goldfish breeding strategies on the Internet overnight.', 'After transporting the puzzle table home from the mall, Lao Feng was busy for a long time, compared to the installation instructions, disassembled, disassembled, and finally assembled successfully, which came in handy at noon.']