请选择CBA2T9z.d,V7d3q4[)Q:c9h6N7u Welcome back _______ school.4P+F+K-K9x3N4B5N1h
A. /4P+F+K-K9x3N4B5N1h
B. go to4P+F+K-K9x3N4B5N1h
C. to4P+F+K-K9x3N4B5N1h