—Look at the boy with green hair. It's cool!
—But I don't think students ________ to color their hair.
A. should be not allowed
B. should be allowed
C. should allow
D. shouldn't be allowed
—Look at the boy with green hair. It's cool!
—But I don't think students ________ to color their hair.
A. should be not allowed
B. should be allowed
C. should allow
D. shouldn't be allowed
B