I.Find the sentences in the Future Perfect Tense:
1.I shall have read the article about the protection of nature in Ukraine by this time tomorrow. 2. Air that used to be so clean and fresh is polluted. 3. Will she have given the final answer before he returns? 4. By six o'clock she will have made a report A Man and Environment. 5. More and more people in all countries are raising their voices in defence of nature. 6. We must pay great attention to the question of nature conservation. 7. We shall have spent і 22 much money for building new purification plants by that time.