15. If drivers want to maintain an orderly traffic environment for the safety of society and the happiness of their families, they should:
(A) drive responsibly and courteously
(B) improve their driving skills
(C) not smoke or drink.
答案:登入後查看
統計: A(5), B(0), C(0), D(0), E(0) #2214476
統計: A(5), B(0), C(0), D(0), E(0) #2214476