1) He is not picking up. He__________ be out. a) can b) must c) can't d) mustn't 2) I'm not sure where she is. She____________ be at the library. a) might b) can't c) mustn't d) will 3) Look at the way that guy's walking. He__________ be drunk! a) should b) can c) might d) must 4) I've been working since 5 this morning. a) 'You would be exhausted!' b) 'You can be exhausted!' c) 'You must be exhausted!' d) 'You might be exhausted!' 5) You __________ be hungry again. You've only just had dinner! a) can't b) mustn't c) might d) may not 6) They _____________ got there . They only left ten minutes ago. a) can't b) must c) must have d) can't have 7) You ________________ left your keys in the office. a) will have b) might have c) must have 8) The police think the paintings____________ taken out of the country. a) may have b) must have c) must have been d) can have been 9) They _____________ got in through the window - the flat is on the 21st floor! a) can have b) must have c) can't have d) might have 10) The house isn't hard to find. It's the red one at the end. You _____ miss it! a) must b) might c) can't 11) What an amazing trip! You _____ have some incredible photos. a) must b) can't c) might 12) This_____ be vegetarian . It's got chicken in it. a) must b) may not c) can't 13) This_____ be vegetarian . Maybe it's got meat in it. a) must b) may not c) can't 14) This book .........be easy to read. a) must b) may not c) can't 15) This book .........be new.  a) must b) may not c) can't 16) This book .........be quite old.  a) must b) may not c) can't 17) This laptop _____ be Mel's – she doesn't have one. a) must b) could c) can't 18) Samira has flu. She _____ need to take the whole week off. a) must b) can't c) may 19) Your watch says a different time from mine. One of them _____ be wrong. a) must b) could c) may 20) Look at that bird! _____it be a vulture? a) must b) could c) can't 21) Look at those muffins! _____they be gluten-free? a) must b) could c) can't 22) That pizza is amazing! The chef_____ be Italian! a) must b) could c) can't 23) This pizza is weird! The chef_____ be Italian! a) must b) could c) can't

Airplane- Modal verbs of deduction

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