IV. Make the sentences interrogative and negative: 1. The students have passed all their exams.
2. They have answered all the questions
3. You have solved the problem.
4. Something has happened to your friend.
5. She has changed much.​

Have the students passed all their exams? The students haven't passed all their exams.Have they naswered all the questions? They haven't answered all the questions.Have you solved the problem? You haven't solved the problem.Has something happened to your friend? Nothing has happened to your friend.Has she changed much? She hasn't changed much.

1)Did the students pass all the exams?

The students did not pass all the exams

2) Did they answer all the questions?

They didn't answer all the questions?

3) Have you solved the problem?

You didn't solve the problem

4)Did something happen to your friend ?

nothing happened to your friend

5)Has she changed much?

She hasn't changed much

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