根据对话内容,在每个空白处填上一个适当的词语,使对话的意思连贯,完整.
  excuse me,is this your pencil?
  ______,it isn't.it is im's pencil.
 1.     jim?_____ is jim?
  2.    oh,he is my good  friend.
  1.    how  old is he?
  2.    he is twelve  _____old.
  1.    what ______is he in?
   2.   he is in class 1,grade 7.
  1.   what's his telephone number?
   2.______is 5863-3772.
  1.  thank you.
  2.that's ok.