Помогите пожалуйста с номерами 3 и 4!! Прошу!! Очень нужно!! Дам 50 баллов!!

3

1) You don't have to fill in the form

2) Paul should take a break form working on the computer

3) He must finish that report for me by 5 o'clock

4) Visitors must not use their mobiles in the hospital

5) Can I leave early today?

6) Vicky wasn't able to come to the party because the was ill

7) Shall I get you something to eat?

8) Sarah can't use the lift because she is claustrophobic

9) My optician said I ought to let my eyes rest

4

1) Would

2) Should

3) May

4) Couldn't

5) Shouldn't