so -- her birthday ,her parents buy her a new piano.A .in B.

问题描述:

so __ her birthday ,her parents buy her a new piano.A .in B.on C.at D.to.
1个回答 分类:英语 2014-12-11

问题解答:

我来补答
on, 在她生日那一天.
 
 
展开全文阅读
剩余:2000