Question

Fill in the blank with the most appropriate word.
“Does she live in Australia?”
“No, she _____________
A) Do
B) Does
C) Don’t
D) Doesn’t

Answer 1

Hint:
I) Auxiliary verbs add substantive or grammatical sense to the clause in which they appear, such as tense, aspect, modality, expression, focus, and so on. Do, does, don’t, doesn’t are auxiliary verbs.
II) We generally use does and doesn’t with singular subjects. Do and don’t are used with plural subjects.

Complete answer:
Here in this given question, we have to find the correct auxiliary verb which can make the sentence grammatically correct. According to the information given in the sentence, we have to choose the correct auxiliary verb.

Auxiliary verbs are used in conjunction with verbs to establish the mood, tense, tone, and other aspects of a sentence.
1) Main auxiliaries have terms such as "does," "have," and "do”.
2) We use the query words do/does or are/are when attempting to ask yes/no questions.
3) We use does and is for third-person singular pronouns (he, she, it) and singular noun forms.
4) We use do for other personal pronouns (you, we, and they), as well as plural noun forms. DO, DON'T, DOES, and DOESN'T is the four basic present tense forms of the verb "to do."

Let us analyze the given options:
Option A) Do - In the given question, the subject is singular i.e. She. Also, a question is being asked whose reply is in a negative statement. DO is used while the subject is plural but here our subject is singular. So, we cannot use this option in the blank because it will make the sentence grammatically incorrect. Therefore, this option is an incorrect answer.
Option B) Does – We use ‘does’ with the third person singular pronoun (he, she, it) and with singular noun forms and ‘does’ is used in the present tense question. The second sentence in the question starts with ‘no’, so, we cannot use does in the blank as it will give the wrong sentence formation. Therefore, this is an incorrect answer.
Option C) Don’t - don't be used when speaking in the first-person plural and second-person singular and the third person plural ("I," "you," "we," and "they"). It can be used to make a negative statement. For example, I don't like seafood; You don't want to do that. So, here the use of ‘don’t in the blank is inappropriate. Therefore, this is an incorrect answer.
Option D) Doesn’t - DOESN'T be used when the subject is singular. In the given question, the subject is singular i.e. She. Also, a question is being asked whose reply is in a negative statement. The verb that fits perfectly for singular and negative statements is ‘doesn't’. The speaker is curious to know where she lives. We can tell she doesn't live in Australia from the second sentence. Therefore, this option is the correct answer.

Therefore the correct answer is option ‘D’.
“Does she live in Australia?”
“No, she doesn’t.

Note:
- In Negative sentences where the subject is singular, we use it after the use of doesn't show some activity. For example, She doesn’t do her work.
- Auxiliaries are always used in conjunction with the main verb. Main verbs, on the other hand, can be used without an auxiliary. It may appear that an auxiliary appears alone in some sentences.