Choose the correct sentence:

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Accepted Answer

**Solution:**

1. The subject is "He" which is third person singular.

2. For present tense negative sentences with third person singular, we use "does not" + base form of the verb.

3. Option A: "He do not know" is incorrect because "do" should be "does" for third person singular.

4. Option B: "He does not knows" is incorrect because after "does not", the verb should be in base form "know", not "knows".

5. Option C: "He does not know the answer." is correct as it follows the rule.

6. Option D: "He did not knew" is incorrect because after "did not", the verb should be base form "know", not past tense "knew".

**Answer:** He does not know the answer.

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Answer

Answer