Although there are no classes in the aft
问题:
Although there are no classes in the afternoon now, no student ______ go out of school without the head teacher’s permission.
A.will
B.must
C.may
D.shall
Although there are no classes in the afternoon now, no student ______ go out of school without the head teacher’s permission.
A.will
B.must
C.may
D.shall