He was listening to the story laughingly.

The corolla of this flower has a very beautiful color.

What do you call 'time' in dialect?

I've been waiting for hours at that shop, but the meal still hasn't come out.

I exercise at the gym for two hours every day.

My new notebook computer operates very fast.

I work every day using computer communication.

The computer froze, so I restarted it.

The computer has frozen, so it needs to be restarted.

I know this is sudden, but could you arrange a time for me to meet with the president?