1.   As her mouth fell innocently open and her body relaxed, Ludovico Castelfranco examined her closely.

2.   His mouth fell open and the look of vacancy returned.

3.   So the full mouth fell upon the precious ear to devour it?

4.   Her mouth had fallen open and her eyes popped even more than usual.

5.   Then, for the second time in the short span that she had known the man, her mouth fell open.

6.   Her mouth fell open in shock, but more shock was to come.

7.   As we rolled down the streets in our rented car, my mouth fell open as I stared out the window.

8.   Eyes grow wide, mouths fall open, tongues hang out.

9.   My son looked at me and his mouth fell open.