Fill in the missing words.

1. I craved my old flat. It was my little ... .

2. My friend had heard about this carbon-neutral house and he thought that it would be very difficult to stick to an ... routine.
3. I had never really given it much attention to be honest, as it was ... to me.

4. As I moved into the house and tried to prepare for a ... change in lifestyle, I suddenly became nervous and asked myself if I had considered everything ... .
5. It’s neither difficult nor ... to recycle, as long as you make it part of your daily routine.