1. the president veto the bill? a. should b. may c. must d. ought 2. your son … stay in bed because he is ill. a. may b. will be able to c. must d. is to 3. excuse me, you tell me the way to the institute? a. should b. must c. may d. can 4. you …… smoke here. it is forbidden. a. must not b. cannot c. may not d. are not able to 5. he …… hurry. he has plenty of time to do that. a. mustn’t b. cannot c. is not allowed to d. needn't
