Question

tú type answer... a la fiesta. (ir)

Explanation:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [],
"current_concepts": [
"Spanish Verb Conjugation",
"Irregular Verbs",
"Spanish Present Tense"
]
}
</pre_analysis>

<reasoning>

Identify the subject and the verb

The subject pronoun is "Tú" (you, informal singular) and the verb to conjugate is "ir" (to go) in the present tense.

Conjugate the irregular verb

The present tense conjugation of the highly irregular verb "ir" for the subject "tú" is "vas".

Complete the sentence

Substituting the conjugated verb into the blank yields: "Tú vas a la fiesta."
</reasoning>

<answer>
Tú <blank>vas</blank> a la fiesta. (ir)
</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"Spanish",
"Spanish Verb Conjugation"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [],
"current_concepts": [
"Spanish Verb Conjugation",
"Irregular Verbs",
"Spanish Present Tense"
]
}
</pre_analysis>

<reasoning>

Identify the subject and the verb

The subject pronoun is "Tú" (you, informal singular) and the verb to conjugate is "ir" (to go) in the present tense.

Conjugate the irregular verb

The present tense conjugation of the highly irregular verb "ir" for the subject "tú" is "vas".

Complete the sentence

Substituting the conjugated verb into the blank yields: "Tú vas a la fiesta."
</reasoning>

<answer>
Tú <blank>vas</blank> a la fiesta. (ir)
</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"Spanish",
"Spanish Verb Conjugation"
]
}
</post_analysis>