填空题

Joe’s parents visited him at college last week. Before their plane landed, it flew over the campus, and they got a good view of the college from the air. Joe (11) the college buildings and grounds, and he wanted to show his parents everything. First, they walked around the (12) and looked at the buildings from the outside, and then Joe took them through the library and the science building. They went (13) the halls of science building, looking into the (14) . After that, they went across the sports field. Joe’s father had been a sportsman before. He said that going onto the field made him (15) a young man again.