Fill in the necessary modal verbs can\ can`t, may\may not, must\mustn`t, to have to in the correct form dance well? -oh? no. very well. i open the window? -no? you cold 3)kevin, be friendly with your brother! 4)olga her medicine every day, because shes ill. 5)girls, you.. be late for school.
2.may, may not
3. must
4.must
5.mustn't