Give the interrogative and negative forms of the following sentences. 1. Ann got a good mark yesterday....

1. Did Ann get a good mark yesterday? Ann did not get a good mark yesterday.
2. Did we translate the text two days ago? We did not translate the text two days ago.
3. Was he translating the text at that time? He was not translating the text at that time.
4. Did he come home late last night? He did not come home late last night.
5. Did she finish her work half an hour ago? She did not finish her work half an hour ago.
6. Did they have breakfast at 8? They did not have breakfast at 8.
7. Were they waiting for us then? They were not waiting for us then.
8. Did my friend see this film last week? My friend did not see this film last week.
9. Was he looking at the people in the hall? He was not looking at the people in the hall.
10. Was there a mistake in his test? There was not a mistake in his test.
11. Was Ann having dinner at six o'clock? Ann was not having dinner at six o'clock.
12. Did they have to take four exams? They did not have to take four exams.

To transform these sentences into their interrogative and negative forms, it's important to understand the structure of past simple, past continuous, and past perfect constructions in English. Let's go through each one:

1. Ann got a good mark yesterday.

   • Interrogative: Did Ann get a good mark yesterday?
   • Negative: Ann did not (didn't) get a good mark yesterday.

2. We translated the text two days ago.

   • Interrogative: Did we translate the text two days ago?
   • Negative: We did not (didn't) translate the text two days ago.

3. He was translating the text at that time.

   • Interrogative: Was he translating the text at that time?
   • Negative: He was not (wasn't) translating the text at that time.

4. He came home late last night.

   • Interrogative: Did he come home late last night?
   • Negative: He did not (didn't) come home late last night.

5. She finished her work half an hour ago.

   • Interrogative: Did she finish her work half an hour ago?
   • Negative: She did not (didn't) finish her work half an hour ago.

6. They had breakfast at 8.

   • Interrogative: Did they have breakfast at 8?
   • Negative: They did not (didn't) have breakfast at 8.

7. They were waiting for us then.

   • Interrogative: Were they waiting for us then?
   • Negative: They were not (weren't) waiting for us then.

8. My friend saw this film last week.

   • Interrogative: Did my friend see this film last week?
   • Negative: My friend did not (didn't) see this film last week.

9. He was looking at the people in the hall.

   • Interrogative: Was he looking at the people in the hall?
   • Negative: He was not (wasn't) looking at the people in the hall.

10. There was a mistake in his test.

    • Interrogative: Was there a mistake in his test?
    • Negative: There was not (wasn't) a mistake in his test.

11. Ann was having dinner at six o'clock.

    • Interrogative: Was Ann having dinner at six o'clock?
    • Negative: Ann was not (wasn't) having dinner at six o'clock.

12. They had to take four exams.

    • Interrogative: Did they have to take four exams?
    • Negative: They did not (didn't) have to take four exams.

In these transformations, the key is to identify the auxiliary verbs (did for past simple and was/were for past continuous) and use them appropriately in the interrogative and negative forms.