1) Advice.  a) He must do homework b) He could listen to music c) He should go to the doctor 2) Obligation.  a) I mustn't perform weekly maintenance b) I must perform weekly maintenance on the machine c) I must repair the machine later 3) Prediction. a) I will travel with my family to Japan b) I shouldn't travel during the scholar year c) I could buy a plane 4) Advice a) You don't have to pant trees  b) We should plant trees c) My mom won't plant trees 5) Prohibition a) We must waste water b) We mustn't waste water c) We should waste water 6) Prohibition a) The babies must use real tools b) The babies will use real tools c) The babies mustn't use real tools 7) Possibility a) Susan won't study for the Hydraulics exam b) Susan might study for the Hydraulics exam c) Susan mustn't study for the Hydraulics exam 8) Obligation a) You must be quite at the library b) You have to run and play in the library c) You mustn't run and play in the library 9) Advice a) You shouldn't eat too many candies b) You must eat a lot of candies c) You might eat a lot of candies 10) Possibility a) My brother could be a doctor b) My brother must be an engineer c) My brother could be an engineer 11) Prediction a) The engineer might use the flashlight tonight b) The engineer must use the compass tonight c) The engineer must use the flashlight tonight 12) Prohibition a) We must eat in the metalworking workshop b) We mustn't eat in the metalworking workshop c) We should eat in the metalworking workshop 13) Future plan a) I am going to buy a toolbox next Sunday b) I must buy a toolbox next Sunday c) I should buy a toolbox next Sunday 14) Possibility a) My boss must buy new safety elements for her b) My boss doesn't have to buy new safety elements for her c) My boss might buy new safety elements for her 15) Future plan a) Peter is going to your company tomorrow b) Peter might go to your company tomorrow c) Peter must go to your company tomorrow

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