Questions 22～25 are based on the following dialogue about driving.
M: Well, Mrs. Fern, how did you do in your driving test
W: Not so well, I’m afraid.
M: Didn’t you get your license
W: No. My score was only 49 percent. The woman who tested me was very strict about everything. M. Where did you lose the most points
W: One thing was not turning my head before changing lanes or making turns.
M: Right. Using a turn signal isn’t enough. To be safe, you have to glance back over your shoulder in the direction you want to go.
W: My teacher didn’t emphasize that enough, or about maintaining the fight distance behind the car in front.
M: That’s right. You need a training distance of about one or two car lengths when you’re driving.
W: My parallel parking was good. I’ve been practicing that a lot.
M: What was your worst moment
W: Waiting on an uphill stop for the light to change to green.
M: What happened
W: Well, I let the car stall and forgot how to use the hand break. So the car rolled back and bumped the one behind me.
M: That alone probably failed you.

What was the woman’s problem when making a turn()