THOSE WHO ARE RIDING A MOTORBIKE ARE NOT ALLOWED TO TAKE OFF THEIR...
28.
Those who are riding a motorbike are not allowed to take off their helmet.
A. Those who are wearing a helmet are not allowed to ride a motorbike.
B. It is the helmet that one needn't wear when he is riding a motorbike
C. You should not wear a helmet when you are riding a motorbike.
D. People must never take their helmet off while they are riding a motorbike.
Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair
of sentences in the following questions.