Complex sentence: This middle school was upgraded to high level in 1888 and shifted to a portion of central training college.the space in the central training college being insufficient, the building of muncipal board was acquired and after extention the school was shifted to the present building in 1891.
Split into simpler sentences: This middle school was upgraded to high level in 1888 and shifted to a portion of central training college. The space in the central training college being insufficient, the building of municipal board was acquired and after extension the school was shifted to the present building in 1891.