11.   He just kept his eyes carefully on the ground as he chose his path.

12.   He kept his eyes on Ezra, surveying him.

13.   He kept his eyes on his father, who had betrayed him.

14.   He moved back into the dimness and ordered a beer, keeping an eye to the street.

15.   He pedalled along the canal bank quite slowly, keeping his eyes skinned for signs of defunct animal life.

16.   He said Kaczynski would keep an eye on his property.

17.   He sat bolt upright and kept his eyes on the table in front of him.

18.   He will keep an eye out, but he can not promise anything.