16) "Will you come later?"  => she asked me.......if I would come later........
17) "Do you like coffee?" => She asked me.........if I liked coffee.......
18) "Is this the road to the station?" => She asked me...........if that was the road to the station........
19) "Did you do your homework?" => she asked me...........if i had done my homework.....
20) Have you studied reported speech before?" => She asked me...whether i had studied reported speech after ............