3.  Keep your passport in a safe place. (Give an advice)   

4. leave your keys in the ignition. ( Give advice)

5.   give me your passport. (polite request)   

6. see your ticket. (Polite Request)     

7. help you with your baggage. (offer)  ( Use : Shall)          

8. help your friend with his baggage. (offer)  ( Use : Would ) 

9.  I (mustn't / needn't) be back later than 8 o'clock tonight or my parents will be angry.

10.  Please. Put out your cigarette. You (mustn't / must) smoke in the hospital.

11.  You are driving too fast! You (have to / needn't) slow down.

12.   Hiba (needn't / mustn't) go to the supermarket today because Dana went yesterday.

13.  Abla needn’t (go / to go) to the supermarket today because Dana went yesterday. 

14.  You (must / needn’t) go to the store today. There is plenty of food in the fridge.

15.  I've studied hard for the test, so I think I'll pass. (Expectation)              

16.  They learnt a lot in the military, so I don't think they will have trouble getting a job. (use should or shouldn't to express expectation)              

17.  This is a new computer, so I think it is faster than the other one. (Expectation)

18.  He studied hard. He (should / shouldn't) pass the exam.

19.  The red signal made him (stop / stopped).

20.  She had her picture (take / taken).      

21.  The noise (made / had) her look outside.

             

  22.  There are security cameras in the building. The security guard (should / shouldn't) see if anyone comes in.