The correct answer to the sentence 'Mary ____ a married woman.' is option 'a. is.'
Let's break down the sentence to understand why:
Subject-Verb Agreement : In English, the verb must agree with the subject in number and person. Here, the subject is 'Mary,' which is singular and in the third person.
Correct Verb Form : For singular third-person subjects, the verb 'to be' in the present tense is 'is.'
Competitors (b. 're and c. am) :
'b. 're' is an abbreviation of 'are,' which is used with plural subjects or the pronoun 'you,' not with 'Mary.'
'c. am' is the form of the verb 'to be' used with the first-person singular pronoun 'I,' which is not applicable here.
Therefore, the correct choice is option a. is . Mary is a singular noun, so the sentence correctly reads, 'Mary is a married woman.'
Understanding this rule helps ensure that your sentences are grammatically correct when using the verb 'to be,' which is essential for clear communication in English.