选用方框内合适的单词或短语并用其正确形式补全下面短文。 demand, doubt, figure, get along, get around, get rid of As society sees circuses shutting down and increasing debate about whether zoos should stay open, some people are starting to 1. whether it is right for people to own pets. Pet keeping is relatively new. Before the 18th century most animals people owned worked. When they could no longer work, they simply 2. them: they were killed without much thought. Times have changed. Nowadays many people say they couldn’t 3. without their pets and even see them as one of the family. They also spend money on them accordingly. The UK pet industry is worth over 10 billion pounds and Americans spent well over $66 billion (10.7% higher than the previous year’s 4. ) on their pets in 2016. In addition, laws have been passed in recent years 5. pet owners provide reasonable care for their animals. Yet, despite all of this, hundreds of thousands of pets are put to sleep each year. Pet owners would say they were simply being kind to an animal that cannot 6. anymore. But others would disagree. As long as owners have the right to decide whether their pet lives or dies such laws mean nothing