2 . 阅读下面短文，在空白处填入 1 个适当的单词或括号内单词的正确形式。
When you come back home 1 a hot summer night, you find that the air conditioner 2 (work) for 20 minutes to cool the room. This is 3 example of the convenience a smart home brings.
A smart home is a convenient home 4 users can remotely control appliances and devices from anywhere through the internet. There are 5 (count) kinds of smart home products, from heating to lighting to entertainment and security. Heating products equipped with temperature or humidity sensors can automatically turn on or off when 6 (require). Some appliances even have self-learning skills and can learn the homeowner’s schedules and make adjustments 7 (according).
8 , there are still a few issues with smart products. Some are not as easy to stall by users as advertised. Apps associated with smart appliances are always badly designed and frustrating. What’s worse, every device has its own app, leading to an overwhelming number of apps for consumers 9 (deal) with.
Good news is that based on smart homes are smart communities whose goal is to improve the overall quality of the community, 10 (provide) convenient services, like applying for water delivery and reporting for repairs, and mutual assistance in daily life for its residents.
