Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions If you had asked him, he______helped you to solve the problem.
A.will have
B. ought to have
C. should have
D. would have
* Đáp án
* Hướng dẫn giải
Đáp án là D. Câu điều kiện loại III: If + S+ had + PII, S+ would+ have + PII.