those young people were so excited()seeing the famous singer A ,on B,for C ,by D,at
问题描述:
those young people were so excited()seeing the famous singer A ,on B,for C ,by D,at
答
b
答
D 固定搭配
答
D at
at seeing/hearing 当看见/听见。。。
答
2
答
D
at表原因