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        Street art is a very popular form of art that is spreading quickly (quick) all over the world.You can find it on buildings,sidewalks,street signs and dustbins in many big_______(city) of the world. Street art has gained great_________(popular).Even art museums and galleries are__________(collect) the works of street artists.Street art started out very__________(secret) because it is illegal to paint public and private property without permission.People often have different__________(opinion) about street art.Some think it is a crime and others think it is a very___________(beauty) new form of culture.
        Art experts claim that the___________(move) began in New York City in the 1960s.Young adults__________ (spray) words and other images on walls and trains.This___________(color),energetic style of writing became__________(know) as graffiti.