1.)My son __ be home by now. Where can he be A.Have to B. Would C. Should D. could 2.) I think your thumb is broken. You __ go to the emergency room. A. Migh B. Could C. ought to D. Can 3.) If you are interested in losing weight, you __ try this new diet A. Could B. Musn't C. Don't have to D. had to 4.) Johnnies fallen down the stairs! I __ call the ambulance A. Will B. Might C. May D. Ought to 5.)You __ come too early, We won't leave until 9 o'clock. A. Has to B. must C. needn't D. can't​