1.      It has been a long time since we have like to John, isn’t it?

Correct answer :

It has been a long time since we have talks to John, hasn’t it?

Question tag

A question tag or tag question is a grammatical structure in which a declarative statement or an imperative is turned into a question by adding an interrogative fragment (the “tag”0. For example, in the sentence “You’re John, aren’t you?” the statement “You’re John” is turned into a question by the tag “aren’t you”. The term “question tag” is generally preferred by British grammarians, while their American counterparts prefer “tag question”

2.      After she had bought himself a new automobile, she sold her bicycle.

Correct answer :

After she had bought herself a new automobile, she sold her bicycle

Personal, Possessive and reflexive pronouns:

-          Personal pronoun

is used to refer to someone or something already mentioned (he,she,it etc.) .The personal pronoun for “she” is “her” not “him”

-          Possesive pronouns

We use possesive pronouns to refer to a specific person/people or thing/thins (the “antecedent”) belonging to a person/people. The possessive pronouns in this sentence is herself not himself.

A reflexive pronoun is a pronoun that is preceded by the noun, adjective, adverb or pronoun to which it refers (its antecedent) within the same clause.