=>
I/
25. put
26. of
27. than
28. solar
29. developing
30. ways
II/
31. Taking a bath consumes twice as much water as taking a shower.
32. Lots of countries in the world are using solar energy.
III/
33. Even though he is not rich, he's very generous with his money.
34. Although she passed the exam, she didn't feel satisfied.
35. The rivers in this region are polluted by chemical wastes from factories.
36. I suggested that we should collect these waste things for recycling.
