A smile costs_______, but gives much.
The world’s population is growing ______, and there is ____ land and water for growing rice.
Lincoln came from nothing, yet but he did ____ that changed the world.
---Why didn’t Sally play the violin at the concert last night?---She said that her hand hurt, but that was only a(n) _______. I saw her play tennis just now.
The phonetic transcription for the word “of” is ______.
I have ________ useful knife and my sister has _______ eraser.