Choose the correct modal verbs 1) we ( can. must. may) deliver the goods only next september. 2) - ( can, must, may) i smoke here? - yes, you ( can, must, may) 3) passengers ( can, must, may,) come to the airport an hour before the take-off time. 4) - (can,must, may) i open my suit-case? - no, you (cannot. mustn't, needn't) 5) ( can, must, may) i watch television, mother? - no, you ( cannot, musn't, needn't) bob it's too late.