31/5/13

modals: special difficulties (3)


3.- MUST/SHOULD?

Both can mean ‘deber’, but must is always stronger, more assertive than should, so use must for moral or legal obligation, rules, commands or strong advice:

You must switch off your mobile phone in the cinema debes apagar tu móvil en el cine
You must smoke less debes fumar menos

and use should for convenience or less strong advice:

You shouldn’t eat so many cakes no deberías comer tantos pasteles.



Practice -3

* Complete with should or must as required

a.- You’re getting a pot belly; you ................ drink so much beer.
b.- There’s a school nearby, you ................ drive more slowly.
c.- He’s losing too much blood, we ............... call an ambulance at once.
d.- You work too hard, I think you ........................ slow down.


KEY TO PRACTICE -3


a.- shouldn’t; b.- must; c.- must; d.- should.

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