She could of finished (A)/ the assignment earlier (B)/ if she had (C)/ started it sooner. (D)

Identify the part of the sentence that contains a grammatical or idiomatic error. If there is no error, choose "No error".

Question

She could of finished (A)/ the assignment earlier (B)/ if she had (C)/ started it sooner. (D)

Identify the part of the sentence that contains a grammatical or idiomatic error. If there is no error, choose "No error".

Accepted Answer

**Solution:**

1. The phrase "could of" in part (A) is incorrect. The correct phrase is "could have" or its contraction "could've".

2. "Could of" is a common mistake arising from the similar sound of "could've" and "could of" but only "could have" is grammatically correct.

3. Parts (B), (C), and (D) are grammatically and contextually correct.

4. Therefore, the error lies in part (A).

**Answer:** A

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