✔ Correct Answer: A. I was writing a letter at 10 o'clock

The correct answer to the question “Choose the sentence with the correct use of Past Continous Tense?I was writing a letter at 10 o'clock, I was written a letter at 10 o'clock” is I was writing a letter at 10 o'clock. This question belongs to Grammar Concepts & Terms in English. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.