1) We ..... visit our great grandparents. a) can b) ought to c) have to d) may 2) You ... study a lot to pass your exams. a) must b) should  c) have to d) may 3) Students  ... wear a uniform to school. a) may b) have to c) mustn’t d) could 4) One day we ... to go to Mars. a) must b) can c) will be able d) may 5) .... I talk to you, Jane? a) have to b) could c) must  d) should 6) Don't forget your umbrella. It ... rain this afternoon. a) have to b) must c) don’t have to d) may 7) .... the sun will come out today. a) maybe b) has to c) must d) may be 8) What is done ... be undone. a) don’t have to b) can't c) has to d) may 9) You ... recycle glass. We help the environment this way. a) have to b) must c) has to d) should 10) You ... be joking. a) must b) may c) have to d) could 11) You ... walk near the edge of the cliff. It’s too dangerous! a) mustn’t b) don’t have to c) doesn't have to d) may not 12) You look very pale. You ... take some aspirine and go to bed. a) have to b) should c) must d) may 13) He wastes so much energy; he ... to at least switch off the lights when he leaves the room. a) ought b) can c) must d) should

Modal verbs

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