Each sentence has 4 underlined words or phrases. The 4 underlined parts of the sentence are marked a, b, e and d. Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.
After driving (a) for twenty miles, he suddenly realized (b) that he has been driving (c) in (d) the wrong direction.
আপনি আমাকে যেকোনো প্রশ্ন করতে পারেন, যেমনঃ
Are you sure to start over?