1) You______ be 18 before you can drive in Costa Rica a) must b) should c) may d) might e) can 2) You______ go to bed so late. It's not good for you. a) mustn't b) can't c) may not d) shouldn't 3) I _____ go out tonight. I'm too busy a) might b) can't c) should 4) ______ I go to the bathroom? a) Should b) May c) Might 5) She has been working all day. She _____ be tired a) must b) may c) should 6) It is very cloudy. It _____ rain later. a) can b) may c) can't d) might not 7) My mom _____ cook chicken tonight. She is not sure yet. a) can b) might c) should

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