She ___ be at home because her car is not here., might, could, must, can't, He ___ be the new manager; he looks too young., must, may, can't, could, They ___ be on vacation since their house is dark., might, must, can't, could, This ___ be the right address; the numbers match., may, must, can't, could, She ___ know the answer; she studied hard., must, might, could, can't, It ___ rain later, so take an umbrella., may, could, must, can't, He ___ be tired; he slept all day., must, can't, might, could, They ___ be at the meeting; I saw them leave., may, can't, could, must, This ___ be the correct key; it fits perfectly., could, can't, might, must, She ___ be the one who called; her voice is different., must, may, can't, could, He ___ be at the office; his car is parked outside., could, might, can't, must, They ___ be playing outside; it's raining heavily., must, can't, may, could, This ___ be the right way; we are lost., might, can't, must, could, He ___ be joking; he looks serious., must, could, can't, may, They ___ be at home; the lights are on., could, might, can't, must, She ___ be tired; she just woke up., can't, might, must, could, He ___ be the one who left the door open; he was the last to leave., might, can't, could, must, They ___ be at the park; it's too late., can't, must, could, may.

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