Ⅰ、1、hasn't been back
2、to search for
3、have lived in
4、with great interest
Ⅱ、A. play, more,on,Nearly, animal,
own,who
B. 1、We can use our mobile phones
to play music ,listen to the radio,download music and use them like MP3
players.
2、We can get all kinds of sounds: animal sounds , pop songs and even your
own voice.
3、略