homework

For each sentence, choose the modal (should, can, must) that is most appropriate. NB: In American English, “must” often sounds old-fashioned and/or bossy - it’s more natural in most cases to say “have to” as in “You have to be at the airport at 9” not “You must be at the airport at 9”. 1. I know he speaks five languages, but ___b_____ he speak Arabic? a) should b) can 2. That looks very expensive. It __b______ have cost a fortune! a) should b) must 3. I ___a_____ believe that you failed your test! a) can’t b) shouldn’t 4. I’m on my way. I ___a_____ be there in about 10 minutes. a) should b) can 5. I ___a_____ afford that. a) can’t b) shouldn’t