It's an ___ (hour) ride from here to the hospital.请说出原因

It's an ___ (hour) ride from here to the hospital.请说出原因 It's an hour's ride from here to the hospital.这里的it's做什么讲,句子 lt is half an hour's ride from here to the people's park. It's an _ride from here to the the museum.(hour)为什么填hour's,这 it is (an hour's bus ride) from my home to the museum.(提问） it's about 20___(minute ride)from here to the zoo -It's an hour's work from here to the airport -Don't worry,I It’s half an hour's walk from here to the bus station --Don’ it is half an hour's walk from here to the bus station Don't It's about ----------bus ride from here to our city.A.2 hour it’s ___ ride from my home to the factory. It is (hour) ride from here to the museum.这个空要填哪个单词