In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
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Question: How do I choose a civil engineering project?

Answer: Why did you choose to study civil engineering?

Question: Where can I get very cost-effective floor polishing service in North Rocks?

Answer: Where can I get very qualified floor sanding services in North Rocks?

Question: Why do we use long transmission line for longer than 240 km?

Answer:
Why is greater than 80 km and less than 240 km considered as medium length transmission line?