1.   He wanted to pretend cool detachment, but his heart was pounding.

2.   Heart pounding, Isabel waited until his mouth had almost reached its goal, then jerked her head to the side.

3.   Her cheeks were hot and her heart was pounding.

4.   His heart pounded as he hung up the receiver.

5.   His heart pounding, Jean looked at the door.

6.   His heart was pounding and his mouth was dry.

7.   She forced her eyes open, and at once her heart was pounding.