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.

1) We ( can) deliver the goods only next September. 2) - ( may) I smoke here? - Yes, you ( can) 3) Passengers (  must) come to the airport an hour before the take-off time. 4) - (must) I open my suit-case? - No, you ( needn't) 5) ( Can ) I watch television, mother? - No, you ( cannot) Bob It's too late.