Are you hungry? Open an app, place your ______ and wait for your food to be delivered（送）to your home — this is ______ many people eat in China these days. According to the latest data,421 million Chinese people use online food delivery services. That's equal to half the total number of Internet users in China.

Which group of people is ordering food online the ______ ? Unsurprising, it's mainly ______ people. A recent report showed that 86.3 percent of the service's users are between 20 and 34 years old. ______ families depend greatly on food delivery services. According to the National Bureau of Statistics(国家统计局), Chinese families have changed in ______ over the past ten years. In 2002, only 7.7 percent of families were single-person households. But this number increased to 15.6 percent in 2017. The percentage of two-person families rose from 18.4 in 2002 to 27.2 in 2017. For these families, cooking relatively(相对) takes more time and resources. ______ ordering food online has become more popular.

The improvement of China's food delivery services has also attracted more customers. According to Meituan's report, the average time takes to make a food delivery ______ from 38 minutes in 2016 to 29 minutes in 2019. Many delivery platforms are also offering more services, delivering meals with fruit, soup, medicine or even ______ . As its services continue to ______ ,it's likely that the food delivery industry will keep growing.