1.It seems that everyone knows him. 2.Unless we protect the rare animals,they may die out.3.The invention of word is considered to be the culture's beginning. 4.Because of over-cuting by human beings,many trees have gone.5.It is a well known fact that protecting environment is protecting ourselves. 6.Many animals are in danger of dying out. 7.To be honest,I'm too anxious to go to school.8.Hearing his words,she's very unhappy. 9.After the accident,he become more careful. 10.I was able to arrive here on time with the car's speedinf up. 11.Some people go to work by car for convenience. 12.He takes up so much of the place. 13.Born into a poor family,he earns his living at the age of 13. 14.She's so thin that she gets ill as if she were a branch.The project are carried out where lack of water. 16.Students' duty is concentrate on study. 17.In the meanwhile our future can only depend on our study. 18.It is a bad way that will affect people's life. 19.He was very grateful to her for what she had guided for him and treated her as his teacher.
那个啥来着呢
