Поставьте глаголы в скобках в форму повелительного наклонения 1.(not open) the door. 2. let me (to help) you to clean the room 3. (to come) (to see) us tonight 4. (not let) him do it

1.Do not open the door.
2. Let me help you to clean the room 
3. Come and see us tonight
4. Don`t  let him do it

1) don't open
2) help
3) come to see
4) don't let