Difficulty: Medium

Average Score: 70%

Which of the following sentences is grammatically correct?

Rationale

Tammy and Yukio wanted to see the art exhibition, but the museum was closed when they arrived.

This sentence correctly uses a coordinating conjunction to connect two independent clauses, creating a clear and grammatically correct compound sentence.

A (Indian food is delicious overall, I like Thai food even better.) YOUR ANSWER

This sentence incorrectly connects two independent clauses with a comma, which results in a comma splice. To correct it, a conjunction or a semicolon should be used to properly link the two thoughts.

B (Carlos went to the library where he checks out a book about butterfly species.) YOUR ANSWER

The verb "checks" is incorrectly used in the present tense, suggesting a habitual action, while the introductory phrase indicates a past action. This inconsistency creates a grammatical error; using the past tense "checked" would resolve the issue.

C (I am glad you are going to the store we need milk and eggs.) YOUR ANSWER

Similar to option A, this sentence improperly connects two independent clauses without appropriate punctuation. A period or a semicolon, or a coordinating conjunction, is necessary to separate the two clauses correctly.

Conclusion

In summary, option D is the only sentence that adheres to grammatical rules by effectively combining two independent clauses with the conjunction "but." The other options demonstrate various grammatical errors, such as comma splices and tense inconsistencies, which hinder their correctness. Understanding these rules is essential for constructing clear and effective sentences.

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