_____ the right decision _____ the future is probably the most important thing we will ever do in our lives．

     by a greater demand of vegetables, farmers have built more green houses.

—How do you know so much about what’s going on in the countries?—I’ve got a friend there who keeps me _______.

Johnson,          to grasp the chance to become a doctor, decided to take up teaching.

There were many talented actors out there just waiting________.