Rewrite the following sentences and paragraph with correct verb tenses and in reported speech.

SECTION A: MIXED TENSE APPLICATION

1. By the time we arrived, the teacher had finished marking the scripts.
2. She had been studying for three hours before she decided to take a break.
3. If he had worked harder, he would have passed the test.
4. They will be writing the exam at 9 a.m. tomorrow.
5. I have never seen such improvement in such a short time.

SECTION B: DIRECT AND INDIRECT SPEECH

6. The teacher said that I was improving my writing skills.
7. The learner said that they would complete the task the next day.

SECTION C: ERROR PARAGRAPH – TENSE CONSISTENCY

The provided paragraph is incomplete. Here is the corrected visible portion:

Last week, we were preparing for our examination. We had revised all our notes and...