摘要：
Polution is becoming a big problem in all big cities all over the world. People are therefore becoming more and more worring about how they get rid of the polution. They are also concern about whether... 阅读全文
摘要：
Jean meets her old fried Fred. J: Hey Fred, how's everything? F: Not so good, I am fraid. Supporting a familly is becoming very very difficult these days. J: What you say can't be more ture. Everyth... 阅读全文