1.   As the train entered the mouth of the tunnel, the lights came on.

2.   The eighth time the hand enters the mouth, the thumb alone is retained and sucking continues.

3.   That is, the hook had entered his mouth and got stuck on the inside.

4.   The last time Jack was bitten, a hornet entered his mouth on a chicken leg and he ended up in the hospital, gasping for breath.

5.   There are black slimy things lurking unseen beneath the surface, black bacteria eager to enter unwitting mouths, black stumps waiting to stub unknowing toes.

6.   Witnesses said that a large group of students had just entered the mouth of the three-story Banzai Pipeline slide together when the chute snapped.

7.   Witnesses said that a large group of students had just entered the mouth of the three-story Banzai Pipeline slide when the chute apparently snapped under their weight.

8.   The first bullet grazed his forehead, the second entered his mouth and became embedded in his skull just below his eye socket.