you had better not smoke here ,will you?还是had you why?(要说得正确

you had better not smoke here ,will you?还是had you why?(要说得正确 you had better not smoke here ,____? b 6.You had better not smoke here,____? You'd better not smoke here. 请分析为什么要这样选,把涉及到的语法知识说下You had better not smoke here,Had you. you had better not to do something 对还是you had better to not 急,You'd better not.,had you? You`d better not smoke here,will you?哪错了? you had better not to spend... You had not better go there You had better 缩写. you had better study hard还是harder?