Question

Complete as frases usando CAN, MAY, MUST ou MUSTN'T

They....arrive late. (Possibilidade)
I....rum five Miles. (Capacidade)
My sister....take ver boyfriend home. (Permissão)
Students....smoke at school. (Proibição)
The house is closed.The family...be out.(Dedução)

Answer 1

They MAY arrive late.                           
I CAN run five miles.   
My sister CAN take her boyfriend home. 
Students MUSTN'T smoke at school.
The house is closed. The family MAY be out.