Add tag questions to the followingsentences

VII. Add tag questions to the followingsentences.
 
37. Peter would like to come with us tothe party, wouldn't they?
 
40. Something is wrong with Jane today, isn't it?
 
39. You have never been to Paris, have you?
 
38. Those aren'tFred's books, are they?
 
33. Nothing went wrong while Iwasgone, did it?
 
31. Everyone can learn how to swim, Can't they?
 
36. He has a bicycle, doesn't he ?
 
32. Nobody cheated in the exam, did they?
 
35. This bridge is not ,is it ?
 
34. I am invited, aren't I?