1. 
Phủ định: I did not go to the cinema last week.
Nghi vấn: Did you go to the cinema last week?
2.
Phủ định: They are not reading book in the room.
Nghi vấn: Are they reading book in the room?
 

1.i went to the cinema last week→i didn't go to the cinema next week (phủ định)→did i go to the cinema next week? (nghi vấn)
2.they are reading book in the room→they aren't reading book in the room (phủ định)→are they reading book in the room? (nghi vấn)
 

1 , phu dinh: I didn't go to the cinema last week
    nghi van : did i go to the ciname last week ?
2, phu dinh: they aren't reading book in the room
   nghi van : are they reading book in the room