Make the following sentences interrogative and negative 1) about five years ago i met irene adler 2) i am sure this case is interesting 3) it is a real mystery 4) such paper is strong and stiff 5) our visitor looked at us with surprise 6) i am going to marry 7) you can find me at my place

1) Did you meet Irene Adler five years ago?  I didn't  meet Irene Adler five years ago.2) Are you sure this case is interesting?  I am not sure this case is interesting. 3)  Is it a real mystery?  It isn't a real mystery.4)   Is such paper  strong and stiff?   Such paper isn't strong and stiff.  5)  Did your visitor look at you with surprise?  Our visitor didn't  looke at us with surprise.6) Are you going to marry? I am not going to marry.7) Can  you find me at my place? I can't find you in your place.