11.   His face never changed expression.

12.   His face never changes expression.

13.   I could see changing facial expressions clearly and in synch with the audio, adding a new dimension to the conversation.

14.   Not once did McGwire change expression.

15.   Some say he changed expressions as many as six times, though sightings of Bigfoot seem more believable.

16.   Suddenly, he changed his expression.

17.   The figures that slap on sticks or coils to change expressions on their abstract masks require pie-in-the-face timing.

18.   The story also will touch on how immigration is changing traditional expressions of faith in the Ozarks.

19.   The safest policy, the actors have found, is to change facial expressions rarely.

20.   Then, coming to a decision, she changed her expression.