A:杯弓蛇影
B:形影不离
C:形单影只
D:立竿见影
——Jane Zhang is going to hold a concert here in July. ——Really? ________ exciting news!
①拓宽师生交往的空间 ②共筑师生情感交流的桥梁
③根除师生之间的隔阂 ④建立民主平等的新型师生关系