The new flyover was opened three times, by three different ministers, each with a ribbon and a speech. It has not yet been opened to traffic. The tone is: A admiring, B ironic, C nostalgic, D objective.
- Three ceremonies sound like an achievement, but the last sentence shows that the road is still unused.
- The writer sets grand events beside no result and lets the contrast do the criticising.
- That gap between what is said and what is meant is irony, so A is wrong.
- D fails because the details are chosen to mock. Nothing looks back fondly at the past, so C fails.
Answer: B, ironic.