fill in the modal verbs: should, can , may, have to, must, shall
1)___ i read? - yes, please.
2) Mary ___ stay at home as she has a headache.
3) Bill, you ___ be friendly with your classmates.
4) ___ I come in? I'm sorry I'm late.
5) You ___ take this medicine three times a day.
6) ___ you draw animals? - Yes, I ___