I was told I'd hear from them within a few days.
If you haven't heard from the first within 28 days, write to find out why.
Only I sure do hope we hear within that period.
Once in a great while, I seemed to hear it within me.
And, really, I was sure to hear within ten working days.
Perhaps, if she didn't hear from me within the next couple hours, she'd better go on to the station.
I seemed to hear every shade of sound within and without the house.
I bet we hear from them within the next few hours.
"We would expect to hear from them within a week," he said.
Nowadays his case had to be heard within a given time.