The key answer of exercise 5

The parents' evening was a complete disaster. We had to start late because lots of the parents were stuck in a traffic jam and couldn't get to the school on time. Then, there weren't enough chairs in the school hall, so lots of people had to stand. Finally, the microphone didn't work, so the audience couldn't hear anything. Still, at least we didn't have to listen to the headmaster's speech. He's always so boring!