You visit the doctor with a fever, mention it's been three days, and get a 5-day course of tablets.

DOCTOR
What's the problem?

YOU
I have a fever.

DOCTOR
Since when have you had it?

YOU
For three days.

DOCTOR
Okay, I'll prescribe tablets. Take them for five days.

YOU
Okay, doctor.
Repeat Practice
Listen To Each Line, Then Say It Aloud
Shadow Practice
Speak Your Role In Real Time