1) She ... hungry again. She has just had breakfast. a) must be b) might be c) can't be d) may be 2) I haven't seen our neighbors for three months. They .... gone away. a) must have b) may have c) can't have d) might have 3) I'm not sure, but Jenny ... gone to the grocery store. a) can't b) might have c) must have d) could 4) She ... seen me at the party yesterday because I was home. a) may have b) might have c) can't have d) couldn't have 5) The letter ... arrive soon. I posted it today. a) might b) must c) can d) could 6) I saw Francis 20 years ago. He ... be really different.  a) might b) must c) could d) can 7) What! You didn't hear that explosion. It ... be true! a) must b) may c) might d) can't 8) Well, I don't know them but they ... be brothers. a) might b) must c) can't d) may 9) According to the evidences, he ... have killed her. He wasn't in the country when it hapened. a) can't b) must c) may d) might 10) Perhaps she .... buy the new edition. a) can b) could c) might d) must

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