精选优质文档-倾情为你奉上Unit 11. R others shows that you are polite.2. Mark made an apology to his teacher for his bad b in class.3. He is an agricultural s_, who devotes all his life to the research into agriculture.4. Greatly i_ by the teachers words, he is determined to study harder than before.5. I had i to help you, but I was busy then.6. We reached an agreement without much .(争论)7. Since he took his job, he has l a busy life.8. Its not easy to