In this task, you will be shown an incorrect English sentence. You need to generate a corrected form of the input sentence.
--------
Question: Because they sent out 2 0 % of the whole carbon emission .

Answer: Because they sent out 2 0 % of the whole carbon emission .

Question: When I have been to Europe by using this , I can save lots of money .

Answer: When I have been to Europe using this , I save lots of money .

Question: In this case a tour guide can be helpful to complete the trip in very less time as compared to what one might end up spending if one decides to explore the place himself/herself .

Answer:
In this case , a tour guide can be helpful in completing the trip in less time as compared to what one might end up spending if one decides to explore the place alone .