The correct option to fill in the blank in the sentence "There is a filling station .... the corner, to your right" is B. by. Step-by-Step Explanation:

1. Understanding the Context: The sentence is providing directions to a location (the filling station) relative to another point (the corner). The word we choose must convey the idea of proximity or location.
2. Analyzing the Options:
3. A. about: This word generally indicates approximation or a general area but does not convey a specific location. Saying "There is a filling station about the corner" sounds awkward and does not clearly indicate where the filling station is in relation to the corner.
4. B. by: This word means "next to" or "near." When we say "There is a filling station by the corner," it clearly indicates that the filling station is located close to the corner, which is the intended meaning in this context. This option effectively communicates the proximity of the filling station to the corner.
5. C. from: This word indicates a starting point or origin. Saying "There is a filling station from the corner" does not make sense in this context, as it does not provide information about the location of the filling station relative to the corner.
6. D. around: While "around" can imply proximity, it often suggests a more vague or circular area. Saying "There is a filling station around the corner" could imply that the filling station is not directly next to the corner but rather in the vicinity, which is less precise than "by."
7. Why Option B is Correct: The word "by" is the most appropriate choice because it directly indicates that the filling station is located next to or very close to the corner. This is a common way to give directions in English, making it clear and easy for someone to understand where to find the filling station.
8. Common Pitfalls:
9. Students might confuse "around" with "by," thinking they convey similar meanings. However, "around" can imply a less specific location, which may not be suitable for clear directions.
10. Using "from" can lead to confusion, as it does not indicate location but rather a point of origin, which is not what the sentence requires.

Revision Summary:

• The correct answer is B. by, indicating proximity.
• "About" is vague and does not specify location.
• "From" indicates origin, not location.
• "Around" suggests a less precise area, which is not ideal for giving directions.

By understanding the nuances of these prepositions, you can improve your ability to choose the correct words in similar contexts.