You had better ----- by bus,or you will be late.(go)

had better是一个固定词组,意思是“最好”,后接动词原形,即had better do sth。最好做某事。其否定形式为：had better not do sth。本句答案：go 句意：你最好乘公交车去,否则你会迟到的。
请采纳为“满意答案”。祝进步。