​浏览器不支持音频​Perhaps because going to college is so much a part of the American dream, many people go for no ______ reason. Some go because their parents expect it, others because it’s what their friends are doing.

A. It shows you have been ignoring your health
B. It can seriously affect your thinking process
C. It is an early warning of some illness
D. It is a symptom of two much pressure

A. There are mysterious stories behind his works
B. There are many misunderstandings about him
C. His works have no match worldwide
D. His personal history is little known

A. Miami
B. Vancouver
C. Bellingham
D. Boston

A. They pollute the soil used to cover them
B. They are harmful to nearby neighborhoods
C. The rubbish in them takes long to dissolve
D. The gas they emit is extremely poisonous