Fill in each blank with ONE suitable word

Fill in each blank with ONE suitable word. 
          The apple is a popular fruit around the world. It can (11)......................delicious juice, sauce and many kinds of desserts. In fact, the apple is one of the (12)....................grown tree fruits in the world. The apple trees have pink or white flowers and apples are (13)......................in autumn. Apples provide a lot of vitamin C, antioxidants, and fiber. Westerners believe that "an apple a day (14)......................the doctor away." Scientists and doctors say it is (15)....................