No one looked at her; all eyes were kept straight ahead.

Good form means that the body is kept straight throughout the movement.

A third kept straight ahead into the middle of the Square, and then stopped.

He was at the wheel, so the car kept straight.

It took thought to keep days and nights straight after a long time in space.

She wasn't going to lie; lies were too hard to keep straight.

She saw cars that they had passed; all were keeping straight ahead.

Cross the forest road and keep straight on up the hill.

The leg should be kept straight for 6 hours after the procedure.

This can be surprisingly difficult for good adults to keep straight.