1. Nowadays people can talk and exchange information easily thanks to technological advances. It is convenient.

      → It is convenient that nowadays people can talk and exchange information easily thanks to technological advances.

1. In this busy world, parents and children don’t have much quality time for each other. It is such a pity.

      → It is pitiful that in this busy world, parents and children don't have much quality time for each other.

1. My neighbor looked after my pet cat when I was away for some days. She was very helpful.

      → It was very helpful of my neighbor to look after my pet cat when I was away for some days.

1. I left my hometown to go to university in 2010. This bridge was built in my hometown 2 years after that.

      → By the time this bridge was built in my hometown, I had left the hometown to go to university for 2 years.

1. My brother got a good job in a state bank, then he got married.

      → Before my brother got married, he had got a good job in a state bank.