I'm sorry to hear his d______填空,

I'm sorry to hear his d______填空, I`m sorry to hear “I'm sorry to hear I'm sorry to hear that .作文 I‘m sorry to hear that. 翻译.I'm sorry to hear that. I'm very sorry to hear that. I'm sorry to ________(hear) that I‘m very sorry to hear it i'm sorry (to hear)that为什么填to hear 选择适当形式填空.I"m ______(true) sorry to hear that. I'm sorry to hear that.为什么要加to?