Поставьте предложения в отрицательную и вопросительную формы. 1. He's discussed the problem with his friends. 2. She's gone on a voyage with her husband. 3. We've seen a comedy on TV. 4. The representatives have been to the plant on Monday. 5. They've taken part in the experiments. 6. You've looked through the offer for compressors. 7. They've made up the contract for rendering technical assistance. 8. She has collected the mail. 9. She has seen today's papers and letters. 10. The managers have studied the offer.

1. He hasn't discussed the problem with his friends. Has he discussed the problem with his friends?

2. She hasn't gone on a voyage with her husband. Has she gone on a voyage with her husband?

3. We haven't seen a comedy on TV. Have we seen a comedy on TV?

4. The representatives haven't been to the plant on Monday. Have the representatives been to the plant on Monday?

5. They haven't taken part in the experiments. Have they taken part in the experiments?

6. You haven't looked through the offer for compressors. Have you looked through the offer for compressors?

7. They haven't made up the contract for rendering technical assistance. Have they made up the contract for rendering technical assistance?

8. She hasn't collected the mail. Has she collected the mail?

9. She hasn't seen today's papers and letters. Has she seen today's papers and letters?

10. The managers haven't studied the offer. Have the managers studied the offer?