I. 1. find out

   2. is famous for

   3. avoid

   4. a symbol of

   5. rise into

   6. is covered with

II. 1. is covered

    2. are seen

    3. are put

    4. are lit

    5. are not allowed

    6. Is; held

III. 1. its own

     2. from; to; to

     3. covered with

     4. is folded

     5. is; used for / to do

     6. are made of

IV. One possible version:

My Favourite Phone

Among all my things, I like my phone best. It is a special gift for me. It’s blue and made of metals and plastics. It’s made in Shenzhen, China. My phone is used for keeping in touch with my relatives and friends. I can take photos and pay for the things I bought with it. It is also used for getting lots of information, listening to songs, playing games and chatting with others. What’s more, I can also use it to help study. I like it because it makes my life more convenient.