English Grammar & Excersises

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English Grammar

Should

        We use 'should' for giving advice.

            *You should speak to him about it.
            *He should see a doctor.
            *We should ask a lawyer.

        We use 'should' to give an opinion or a recommendation.

            * He should resign now.
            *We should invest more in Asia.
            *They should do something about this terrible train service.

        'Should' expresses a personal opinion and is much weaker and more personal than 'must' or 'have to'. It is often introduced by ' I think'.

            *I think they should replace him.
             
            * I don't think they should keep the contract.
             
            * Do you think we should tell her.

        exercise 1-- exercise 2---exercise 3------exercise 4
         
Source: http://www.englishgrammarsecrets.com