It is forbidden to sell cigarettes to children. A. Shops don't have to sell cigarettes to children B. Shops shouldn't sell cigarettes to children C. Shops needn't sell cigarettes to children Đoạn văn26/50It is forbidden to sell cigarettes to children.Shops don't have to sell cigarettes to childrenShops shouldn't sell cigarettes to childrenShops needn't sell cigarettes to childrenShops mustn't sell cigarettes to childrenGiải thíchChọn A