The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
In the next few months, / they will / have teach / hundreds of children.

Correct option is A

Option (a) "have teach" contains an error.
Explanation:
· The phrase "have teach" is grammatically incorrect.
· The correct structure should be "have to teach" instead of "have teach."
· In future sentences with modal verbs like "will," the infinitive form ("to teach") is used rather than the base verb.
Grammatical Rule Used:
· The correct structure for obligation in the future is:
· Subject + will + have to + verb (base form).
Correct Sentence:
✅ In the next few months, they will have to teach hundreds of children.