A good student is good at _______ what the teacher says at once when hearing something important in class .
The little town has now grown into a modern big city, and is ______ what it used to be.
The medicine tastes ________ , but works ________.
Life in that poor town is _______ a bed of roses.
We have prepared _______ for so many apples.
Last night we met with _________ accident on the way home.