If she had studied harder, ________.
B. she would have do well
C. she will have done well
D. she would have done well
সঠিক উত্তরঃ
D.
she would have done well
Explanation: R.D [I]-213/M:05-06; 3rd Conditional Sentence এর rule (If+ subject+ had+ past perfect, subject+ would/could/might + have + past participle)