—Does anybody want an extra ticket to go to the movies? —Whom would you rather _______ with you, Li Hua or me?

Hand in hand with reading, Dave ____ the habit of making notes.

Obviously, the advantage we take of solar energy is ________   enough.We have to work still harder.

It took him a long time to _________ the skills he needed to become a professional artist.

It is generally believed that mutual understanding ______ a happy marriage and life.