sentences:  The principal, Mrs. Logie, repaired the school buildings that were destroyed during the war.At that time, the school began to prepare its students not only for the matriculation exam but also for the GCE (General Certificate of Education) exam from the University of London.In 1951, the number of students increased to 850 and the four-story Kindergarten building (113'×51') with 15 rooms was built in 1952 to accommodate the students.