Choose the option that best completes the sentence.
Justina used to be the best-behaved girl, ____?
couldn't she
wasn't she
wouldn't she
didn't she
Explanation
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For those who are confused, the selected answer is correct and the explanation spot on!
don't be confused guys
the selected answer is very much correct cox there's no auxiliary
The correct answer is "didn't she" because of how question tags work with the verb phrase "used to."
"Used to" is a past-tense construction that indicates a past habit or situation that is no longer true.
In question tags, when the main sentence is in the past tense (like "used to"), we don't repeat the past tense verb in the tag.
Instead, we use "did" in the tag because "did" is the auxiliary verb used for forming past tense questions.
The tag should be negative because the main sentence is positive.
So, when you have a sentence like "Justina used to be the best-behaved girl," you form the tag by:
1. Using "did" because the main sentence is past tense (thanks to "used to").
2. Making the tag negative ("didn't") to match the positive statement.
3. Adding "she" as the subject of the tag, since "Justina" refers to a female person.
Thus, the tag is: "didn't she?".
