While I was doing pattern work with my CFI trying to get ready for my checkride, I overheard this conversation while on downwind (this is based on my best recollection...)
Cessna 12345: KCHD Tower, Cessna 12345, 10 miles out, 3500 feet, with ATIS, We'd like to transition your airspace.
KCHD Tower: Uhh.... Cessna 345, the class delta airspace at KCHD only goes to 3,000 feet.
Cessna: Repeats the same request verbatim.
KCHD Tower: Cessna 345, the airspace.... <pause with mic keyed...> Cessna 345 transition through class Delta airspace approved at or above 2,500 feet.
My instructor wasn't paying attention / didn't hear the conversation. I was paying more attention to them, than I was to flying. While listening to them I drifted about 150' from TPA, my instructor barked at me about it, and I made a crappy approach for the T&G.