Fill in the blanks with the words or phrases given in the box. A.air-conditioning B.accessibility C.disabled D.drenched E.step-free F.upgrading My name’s Li Ran. I work at a subway station. Today, I dealt with two complaints. The first passenger complained about the onboard. He said it was so hot on the train that everyone was in sweat. I felt sorry about it, and I told him an project was underway, and hopefully we would have a cooler train in two weeks. The second complaint was made by two college students from London. They complained about the of the subway stations. They found it inconvenient for people to take the subway. I took their complaints seriously, and I think we need to make the Metro more accessible to everyone and increase the number of stations, where passengers can get from street to platform level without using stairs or escalators, for the convenience of wheelchair users. A. B. C. D. E. F.