Homingpigeonisusefulasa______carrierbecausewhentakenfromhome,itwillreturnatthefirstopportunity.

The proposal deserves support as it gives ______ to the needs of children.

Many patients insist on having watches with them in hospital, ______ they have no schedules to keep.

If you’re sitting around a lonely campfire at night, the howl of a wolf can sound pretty______.

Americans eat ______ vegetables per person today as they did in 1910.