Rewrite by another way: It is essential for him to buy a new bike

Rewrite by another way
1. It is essential for him to buy a new bike
- He...................................
2. We should travel by bike or bus to reduce the air pollution
- If....................................................
3. I had a stomachache because of the polluted water
- The water pollution made....................................
4. I moved to this house in 2012
- I have..................................
5. This building is smaller than that building
- That building.........................................
6. My neighbourhood is noisier than your neighborhood
- Your neighborhood......................................
7. Himalayas is longer than other mountain ranges in the world
- Himalayas is the.............................................
8. The Green hotel is cheaper than the Palace hotel
- The Palace hotel....................................
9. Hoi An is more historic than Da Nang
- Da Nang..........
10. These streets are wider than those streets
- Those streets....................