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buihoanghao1205
2 năm trước
You must never take your helmet off while you are riding a motorcycle.




A.If you are riding a motorcycle, you need wear a helmet
B.If you are riding a motorcycle, you needn’t wear a helmet
C.You needn’t wear a helmet whenever you are riding a motorcycle.
D.Helmets must be worn at all times when you are riding a motorcycle.
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A.rightly
B.really
C.truly
D.actually

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