A．A student in the university.
B．A policeman who charges this case.
C．The president of the university.
D．A teacher in the university.
A．A small pistol.
B．A shotgun and a handgun.
C．A rifle and a shotgun.
D．A pistol and a rifle.
A．Their mothers taught them.
B．They traveled to Africa.
C．They learned in school.
D．They taught themselves.