Составить предложения с словами which/that; who/that; whose; where; when

1) Who is sitting at the tables? This is the man who helped us.This is the man that helped us.2) Where are her friends going to have a party? 3) Whose room is this? 4) When is she writing a letter? 5) Which books he does give you? It's the watch which my husband bought me.It's the watch that my husband bought me.