"The hotel is beside the airport" should be accepted as well :)
The hotel is close to the airport is not accepted... :-(
'Close to' does not mean 'next to' which is 近.
"The hotel is by the airport."
Should be accepted.
"A hotel is next to the airport". Should also be accepted but currently isn't. 2019.04.14
who'd want to stay at that hotel?
People who got stuck due to a cancelled flight and need somewhere to sleep that isn't the airport floor
Or people who are only going to spend one night in the city where the airport is and need to get up early to catch their flight.