Question

edit correct the error in each sentence according to the grammar in the lesson.

1. he teached english at an adult school last year.

Explanation:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"direct_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Simple Past Tense",
"Irregular Verbs"
],
"new_concepts": [],
"current_concepts": [
"Simple Past Tense",
"Irregular Verbs"
]
}
</pre_analysis>

<reasoning>

Identify the grammatical error

The sentence contains the incorrect verb form "teached" used as the past tense of "teach".

Determine the correct past tense form

The verb "teach" is an irregular verb. Its correct simple past tense form is "taught".

Formulate the corrected sentence

Replacing "teached" with "taught" yields: "He taught English at an adult school last year."
</reasoning>

<answer>

1. He <blank>taught</blank> English at an adult school last year.

</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"English Grammar",
"Irregular Verbs"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"direct_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Simple Past Tense",
"Irregular Verbs"
],
"new_concepts": [],
"current_concepts": [
"Simple Past Tense",
"Irregular Verbs"
]
}
</pre_analysis>

<reasoning>

Identify the grammatical error

The sentence contains the incorrect verb form "teached" used as the past tense of "teach".

Determine the correct past tense form

The verb "teach" is an irregular verb. Its correct simple past tense form is "taught".

Formulate the corrected sentence

Replacing "teached" with "taught" yields: "He taught English at an adult school last year."
</reasoning>

<answer>

1. He <blank>taught</blank> English at an adult school last year.

</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"English Grammar",
"Irregular Verbs"
]
}
</post_analysis>