Directions: The sentence given below has three underlined parts named A, B and C. Choose the part of the sentence that contains an error as your answer. If there is no error, mark (D).

(A) Had he (B) tried again, (C) he can pass the examination. (D) No error

The error is in part (C). In Type 3 conditional sentences (unreal past), the main clause should use 'would have + past participle', not 'can' which is present tense. The correct sentence is 'Had he tried again, he would have passed the examination' or 'could have passed'. Using present modal 'can' with a past conditional is grammatically incorrect.