MODALS

   

   Exercise A

   Complete the second sentence with must/n´t/, need/n´t/, should/n´t/ or /don´t/ have to so that
   it has a similar meaning to the first sentence:

   Example: It is vital to wear a helmet when you ride a motorbike.

   You......must wear a helmet when you ride a motorbike.

   

   1. I expect we´ll get the contract because we offered the best price.

   We offered the best price, so we........................................................

   

   2. It isn´t necessary for us to spend a long time in a shopping centre if we don´t need so
   many things to buy.

   We........................................................................................................

   

   3. It was wrong of you to speak to my mother like that.

   You........................................................................................................

   

   4. She promised to phone me before lunch. It´s seven o´clock now.

   She.............................................................................................................by
   now.

   

   5. I made far more sandwiches than we needed.

   I..................................................................................................so
   many sandwiches.

   

   6. It´s essential that my father doesn´t find out what I´ve done.

   My
   father..............................................................................................................

   

   7. In my opinion it would be wrong for them to move house now.

   I don´t think
   they.................................................................................................

   

   8. My sister offered me a lift. So it wasn´t necessary for me to call a taxi.

   As my sister offered me a lift,
   I...........................................................................

   

   9. I think it´s a good idea to check the timetable before we leave.

   We........................................................................................................................

   

   Exercise B

   Rewrite the following sentences using may, may not, can´t and must without changing the
   meaning /there may be more possibilities/:

   

   1. It is possible they don´t live here any longer.

   2. It is sure there is some mistake.

   3. I am positive that they sold all the flowers.

   4. It is possible that they are not married.

   5. I am not quite sure if she gave up her job.

   6. Maybe they did not finish the work.

   7. He certainly did not give his speech yesterday.

   

   

   

   Exercise C

   Tick the pairs of sentences that express approximately the same idea. Put a cross by those
   where there is a clear difference in meaning:

   

   This could be the chance we have all be waiting for.

   This might be the chance we have all be waiting for.

   

   This may be the last chance for peace.

   This might be the last chance for peace.

   

   I must be on my way if you don´t mind.

   You must be joking.

   

   They must have taken a short cut to get here.

   They had to take a short cut to get here.

   

   The washing machine shouldn´t be making such a noise.

   The washing machine couldn´t be making such a noise.

   

   It can´t be that difficult.

   It mustn´t be that difficult.