The old man hasn’t heard ____ his son for a long time. This makes him reall
问题描述：
The old man hasn’t heard ____ his son for a long time. This makes him reall
可选答案:
1.by
2.for
3.in
4.from
答
句子没有完整啊,不过还是可以填出来.
答案是B HEAR FROM意思是收到某人的来信.
这个老人很久没有收到儿子的来信,这使他……