I often hear birds----in the tree.A.sing B.C.sings D./

问题描述:

I often hear birds____in the tree.A.sing B.C.sings D./
1个回答 分类:英语 2014-12-10

问题解答:

我来补答
A
hear sb do sth 听见某人做某事
 
 
展开全文阅读
剩余:2000