Complete the appropriate modal. 1.You___speak foul language to anyone.
A. can't
B. shouldn't
C. mustn't
D. may not
2.A person___be able to develop their individuality while being supported and confident within the family.
A. should
B. must
C. ought to
D. will
3.You___always ask your mother's permission if you are having group work at home.
A. have to
B. ought to
C. should
D. can
4.Anyone who makes a visit to other families___show his/her respect.
A. should
B. may
C. can't
D. must​