单项选择题A.To show that mindless graffiti can provoke violence.B.To show that Londoners have a special liking for graffiti.C.To show that graffiti, in some cases, can constitute a crime.D.To show that graffiti can make the environment more colorful.
单项选择题A.They might lose control of their members because of the increase in immigration.B.Their members might find it difficult to get along with the newcomers.C.The working condition of their members might deteriorate.D.Their members might lose their jobs to the newcomers.