You had better not go to Beijing by train句中有GO要不要加do?求解，满意加分！！！！！！！！！！！！！had better do sth. “最好做某事” 是给对方提建议的一种委婉方式最好不做某事had better not do sth 你问的句中有GO要不要加do 答案：不能加DO