Điền từ vào chỗ trống

1. The shop uses only...................paper (recycle)
2. Our sales are.......................(decrease)
3. ....................is on the increase in big cities (criminal)
4. They are tired, so they can sleep easily
-> They are..........................................
5. It's necessary to recycle trash
-> Recycling....................
6. Getting natural gas is difficult
-> It's...............................
7. I think we should turn off the computers after class
-> I think we shouldn't..........................
8. Japan has high life expectancy because of its good diets and healthcare
-> Because Japan.........................