Let's learn to use the problem we are facinga stepping-stone to future success.
. It's very kind ______ you ______ say so.
The old man's ______ pity on the snake led to his own death.
It is no good ______ today's work for tomorrow.
It's no use______ with him. You might as well ______ with a stone wall.
I couldn't understand ______ at the poor child.