Do the tasks

Choose the correct word to complete the sentences

You're probably already familiar with some well-known idioms, but do you know any that contain words connected to cities and urban life? Let's see!

1. John used to be quite introverted and shy. Now he never misses a party, what a man
   [about|around|in]town!
2. I've already passed my exams. Now it's all
   [a forgotten city|water under the bridge|ghost town].
3. How couldn't you hear about the new shopping mall? It's the
   [walk|gossip|talk]of the town!
4. I'd be glad to help you with your French lessons. It's
   [at the crossroads on the|right up my|down the main]street.
5. I'm at the
   [suburbs|streets|crossroads]right now thinking which university to apply to.
6. One may sometimes need to sit back and go down the
   [childhood road|past street|memory lane], but you also have to think about the future.
7. My grandpa's car is as old as
   [the hills|London|history]but he takes really good care of it, so it looks great.
8. I could have bought tickets to the concert with a 50% discount, but they're all gone now, I've missed
   [a turn|the bus|a taxi].

What's the idiom?
Match the idiom from the previous task with its meaning

water under the bridge	to lose an opportunity
as old as the hills	a sociable man with reputable friends
to go down the memory lane	about to make an important decision
the talk of the town	to revive some old memories
a man about town	really old
right up my street	a fashionable thing being talked about a lot
to miss the bus	I know a lot about it
at the crossroads	it's all past now, no need to think about it

What does it mean?