Choose the grammatically correct sentence.

Question

BlackTom AI · Accepted Answer

Subject-verb agreement and correct clause joining determine the sentence’s grammaticality: the plural subject “Healthy bodies” correctly takes the plural verb “come,” and the two independent clauses are properly joined with a coordinating conjunction and comma.

1. Relevant knowledge points and concepts
- Subject-verb agreement: plural subjects take plural verbs (Healthy bodies → come).
- Independent clauses: two complete sentences joined by a coordinating conjunction (and) should be connected with a comma.
- Parallel clarity and modifier placement: each clause should clearly express its own idea without creating a dangling modifier or ambiguity.

2. Complete reasoning process, step by step
- Identify clauses: Clause A = “Healthy bodies come in all types.” Clause B = “young people need to understand this lesson.”
- Check Clause A: Subject = “Healthy bodies” (plural). Verb = “come” (plural). Phrase “in all types” is a valid prepositional phrase modifying “come.” Clause A is grammatically correct.
- Check Clause B: Subject = “young people” (plural). Verb = “need” (plural). Object = “to understand this lesson.” Clause B is grammatically correct.
- Joining the clauses: Two independent clauses joined by “and” require a comma before the conjunction. The sentence uses “, and” which correctly links the clauses without creating a run-on.

3. Intermediate steps shown (parsing)
- Healthy bodies (plural subject) + come (plural verb) + in all types (prepositional phrase).
- young people (plural subject) + need (plural verb) + to understand this lesson (infinitive phrase as direct object).
- Comma + and connects the independent clauses: [Clause A], and [Clause B].

4. Why the correct answer is correct
The sentence respects number agreement, clause completeness, and punctuation rules for joining independent clauses, producing a clear, grammatically sound statement.

5. Why other options would be incorrect (brief)
Typical incorrect variants would err by using singular verbs (“comes,” “needs”), omitting the comma between independent clauses (creating a run-on), or misplacing modifiers so the meaning becomes unclear.

6. Conclusion
Therefore, the grammatically correct sentence is: “Healthy bodies come in all types, and young people need to understand this lesson.” This matches the provided answer.

Choose the grammatically correct sentence. 单项选择题

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