Her heart began to race when she got into the car.

The heart will begin to beat around the same time.

He must have known where to look, and her heart began to beat very fast.

She heard the guard's heart begin to beat along with her own.

She looked him full in the face and his heart began to pound.

Her heart began to race in a kind of panic.

His heart began to pound as he turned back to the paper.

Now the President's heart began to show signs of trouble.

On the way, the patient's heart began to beat again.

Not real, he told himself immediately, but his heart began to speed up again.