Recreate the words

1. Is it possible that most smokers
   [ ] to stop by using e-cigarettes?
2. I think not all myths about health
   [ ] completely.
3. It's obvious that more research into the new medicine
   [ ] before it was made available.
4. It hasn't been proved that sleepwalkers
   [ ] safely.
5. The results of the experiment
   [ ] before they were shown.
6. People's sleep
   [ ] by different annoying sounds.
7. Not all health advice
   [ ] in the past.
8. There's a possibility that we
   [ ] to by the drinks industry about how much water we need.