语法填空
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
Do you have trouble taking a taxi? Have you ever heard ______ Dididache? Dididache(滴滴打车),a taxi-hailing smartphone app(应用程序) which is believed to be created by Tencent, has recently_____(appear) in Xiamen, and more than 700 taxi drivers in the city have used the app.
The app shows the real-time locations of taxis on a map using the GPS technology and make________ possible for users to hail(招呼)a taxi on their smartphones. The______(use) request(要求)will be sent to the n______ taxi drivers who will decide______ to accept the order or not.
Taxi-hailing apps are very p_____ in Beijing, Shanghai, Hangzhou and Nanjing, having gained tens of thousands of users._______, the city’s taxi-control departments doubt its helpfulness and have said it may not be suitable for Xiamen.
The app has been criticized(指责) for disturbing market order, and creating_______(difficult) for passengers who do not use the app to hire a taxi. Many users complain that they are only useful when most taxis are idle(空驶),and hiring a taxi can still be challenging bad weather and rush hours. Can this app be in use for long? Technology might make a great d_______ to our life. Let’s wait and see.