Поставьте предложение в вопросительную и отрицательную формы: 1. We are writing a dictation now. 2. He always does morning exercises. 3. My mother came home at 4. 4. The sailors will paint the hull tommorow. 5. They have already done this work. 6. There are some books on the table. 7. My sister had received the letter. 8. A new ship was built in Germany. 9. Our agent supplied the provision. 10. We shall have no time to do it