The construction crew used back-fills to reinforce the foundation.

The slack fills in the construction site were causing delays.

He fills up the gas tank before going on a long trip.

The drummer played some impressive drum fills during the solo.

He always fills in the blanks in his crossword puzzles.

He always fills in the blank correctly.

The teacher handed out the gap fills to the students.

There are several gap-fills in the test.

February fill dyke, be it black or be it white

He fills his pants with fear.