1) I can’t get this tablet to work; I …….. read the instructions properly. a) oughtn’t to have b) can’t have c) shouldn’t have 2) I ordered the DVD a week ago so it …….. arrived here by now. a) should have b) could have c) may have 3) I can’t find my phone anywhere. I …….. left in at school a) should have b) may have c) ought to have 4) Julie’s not at home. She …….. decided to go out after all. a) was supposed to have b) must have c) ought to have 5) You …….. promised to help Ed if you didn’t have time. a) mustn’t have b) couldn’t have c) shouldn’t have 6) You …….. told me you’d eaten all the biscuits! I’d have got some more. a) may have b) must have c) might have

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