The exchange program between the UK and China may affect various schools ______from kindergarten to high school. A. spreading B. locating C. ranging D. including
By careful observation and precise calculation, Nicolaus Copernicus _____ that there is no one center in the universe and the sun is the center of the solar system.
______ the aids from the outside, the positive attitude of the disaster-stricken people _____ the key role in the reconstruction of their destroyed towns and villages.