The correct option to fill in the blank is did not speak.
The verb "speak" is in the negative form, so the past participle form should be used. The past participle form of "speak" is "spoken." The word "did" is used to form the past tense of verbs.
The other options are incorrect.
- Not spoke is grammatically incorrect. The past participle form of the verb "speak" is "spoken," not "spoke."
- Did not spoken is grammatically incorrect. The word "spoken" is repeated unnecessarily.
- Dident spoke is a misspelling of "did not spoke." It is still grammatically incorrect.
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