Answer:
2. Renewable sources are a good energy alternative to rely on.
3. Traffic jams are something many people complain about.
4. Low-energy light bulbs might be a good solution to spend money on.
5. Is ecology something that you care about?
6. What ecological issues are you particularly worried about?
8. Global warming is something we need to work on.
9. What achievement is he famous for?
10. She provided a solution that we were pleased with.
Explanation:
To unscramble the sentences above, we need to understand a couple of things. First, they will all end with a preposition, just like the prompt shows. The purpose of this exercise is for us to practice using expressions that need a preposition to completely convey their meanings, such as "worry about", "rely on", "to be pleased with", etc.
Second, we must read the scrambled sentences looking for the probable topic of each. Since the general theme here concerns the environment, it becomes easier for us to figure out that the topic of each sentence will most likely consist of words related to environmental issues. In most cases, the topic coincides with the subject, which makes it easier to structure the sentence.
