Grammar Related

Review Grammar related questions and content

Select the word or phrase that makes the following sentence grammatically correct: Why did we try so hard?

  • A. has to
  • B. Haven't
  • C. had to
  • D. have to
Correct Answer: D

Rationale: The correct answer is 'D' - 'have to'. The sentence 'Why did we have to try so hard?' is grammatically correct as it uses the past tense 'have to' to express a necessity or obligation in the past. 'Has to', 'Haven't', and 'had to' would not fit the sentence structure or convey the intended meaning of questioning the necessity of trying hard.