I. 1. full of

   2. ever since

   3. one another

   4. leave; behind

   5. grow up

   6. at least

II. 1. joined; have taken

    2. bought; hasn’t listened

    3. had; had

    4. been

    5. has gotten 

    6. have known

    7. has been

    8. have played

III. 1. What do you think of / How do you like

     2. is forever asking

     3. success in rock

     4. live

     5. belong to

     6. is great for

     7. the beauty of

     8. used to live

IV. One possible version:

Sarah is an American girl. She likes country music. She is a fan of country music. Country music is a traditional music from the southern states of America. It reminds us that the best things in life are free — laughter, friends, family, and the beauty of nature and the countryside. Sarah’s dream is to go to Nashville because Garth Brooks is there. He’s sold more than 120 million records. She likes to listen to his songs. She hopes to see him sing live one day! She thinks Garth is one of the most successful musicians in American history.