This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Subject-verb agreement
Prompt focus: Select the version that corrects the underlined error: Each of the students in the advanced classes (have submitted) their final projects on time.
Why the correct answer works
has submitted
The subject is each, which is singular, so it requires the singular verb has submitted rather than the plural have submitted.
Why the tempting wrong answer fails
Were submit is not a correct verb form and is plural.
Plain-language takeaway
When a sentence begins with each followed by a prepositional phrase, the verb agrees with the singular subject each, not with the plural noun inside the phrase. Each is always singular.
Simple analogy
Think of subject-verb agreement like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.