can you please help me with these questions

'in gloucestershire, where jenner lived, there were many stones'
2.13 which option explains the correct use of the commas
to give extra information
to indicate a sentence
to distinguish items on a list
to indicate a phrase

2.14 WHO is the person who invented vaccination?
the words in bold is an example of...
A. an indefinite pronoun
B. a possessive pronoun
C. a personal pronoun
D. an interrogative pronoun

2.16 which sentence is written in the correct past tense?
A. It was several years before Jenner's work was accepted
B. it took several years before Jenner's work was verified.
C. it took several years before jenner's work was accepted.
D. it took several years before jenner's work was realised.

jenner asked the boy, "how are you feeling?"
2.17 which sentence is written in the correct indirect speech?
A. jenner asks the boy how do you feel?
B. jenner asked the boy how he felt.
C. how do you feel jenner asked the boy.
D. jenner asked the boy, "how did you feel."

2.18 which sentence is an example of stereotyping?
A. all doctors save lives.
B. doctors need training.
C. some doctors are specialists.
D. there are different kinds of doctors

2.19 choose the sentence with the correct preposition.
A. the farm worker worked in the farm
B. the farm worker worked under the farm.
C. the farm worker worked on the farm.
D. the farm worker worked between the farm.

jenner is through the wered
2.20 gives the literal of the word honored
A. he attended a festival in his honor.
B. he was praised for his work
C. he was invited to parties
D. he was at a world-wide gathering

2.13: The correct option to explain the use of the commas is "to give extra information."

2.14: The person who invented vaccination is an example of a personal pronoun, so the correct answer is C. a personal pronoun.
2.16: The sentence written in the correct past tense is A. "It was several years before Jenner's work was accepted."
2.17: The sentence written in the correct indirect speech is B. "Jenner asked the boy how he felt."
2.18: The sentence that is an example of stereotyping is A. "All doctors save lives."
2.19: The sentence with the correct preposition is C. "The farm worker worked on the farm."
2.20: The literal meaning of the word "honored" is A. "He attended a festival in his honor."