—Learning to love is like learning to walk.
—Yes, ________ we step out bravely, we can find it easy.
although
when
unless
Did your father tell you ______?
—I’m afraid that I can’t do it. —Oh, you should believe in yourself. You won’t know what you can do______ you try it.
Before I talked with ______ scientist, I had never met______ clever person like him.
—Thank you for the nice meal you offered us! —_______.
—Are you _______ to go hiking with us? — Yes, I _______.