Can you please tell me which is the best choice? I really hope you can have a look at it today. Thanks a lot!

1) He's going to take his car to a mechanic ( or mechanic's?)
2)How are the different pilgrims presented and what are the main themes covered in the tales?
3) Describe their journey and explain the significance of its (?) route.
4)Refer then to the elements of nature (as ?) described by Chaucer in the opening of (or to?) the Canterbury Tales.
5) Present the character of the Prioress pointing out her appearance, education and behaviour. How would you describe Chaucer's tone in depicting her?
6) He's visiting the dentist.
7) Read the sentences on your monitor.
8) You mustn't damage the school furniture.

1. "to a mechanic".

3. "its" is ok.
4. You don't need "as" , "of" is fine.
5. put a comma after Prioress
The rest are fine

To determine the best choice among the given options, it would be helpful to know the context or criteria for making the decision. However, I can guide you on how to approach each statement:

1) He's going to take his car to a mechanic (or mechanic's?):
To choose between "mechanic" and "mechanic's," you need to consider the possessive form. If the car belongs to the mechanic, you should use "mechanic's." If the car is owned by someone else and they are taking it to a mechanic for repairs, then you would use "mechanic."

2) How are the different pilgrims presented and what are the main themes covered in the tales?:
To answer this question, you would need to read or analyze the Canterbury Tales by Geoffrey Chaucer. Pay attention to how Chaucer presents each pilgrim and the various themes explored in the tales.

3) Describe their journey and explain the significance of its (?) route:
This question implies there is a specific route mentioned in the text. Analyze the journey described in the context you are referring to and explain the significance of that particular route. Make sure to include any relevant details.

4) Refer then to the elements of nature (as?) described by Chaucer in the opening of (or to?) the Canterbury Tales:
To properly answer this question, refer to the opening of the Canterbury Tales by Chaucer and identify the elements of nature that are described. Use the correct preposition "as" or "to" based on the context of your response.

5) Present the character of the Prioress, pointing out her appearance, education, and behavior. How would you describe Chaucer's tone in depicting her?:
To describe the character of the Prioress, examine the text where she is introduced and note her appearance, education, and behavior as described by Chaucer. After analyzing these aspects, determine the tone employed by Chaucer in depicting her.

6) He's visiting the dentist:
This option seems unrelated to the other questions and doesn't require any further explanation. It appears to be a statement rather than a question.

7) Read the sentences on your monitor:
This request is straightforward. Simply look at the sentences displayed on your monitor and read them aloud.

8) You mustn't damage the school furniture:
This sentence is a command instructing someone not to cause any harm to the school furniture. No further clarification or explanation is needed.

Based on the information provided, it is challenging to determine the best choice without additional context or criteria for evaluation.