为什么you should understand the traffic rule by now you have ha

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为什么you should understand the traffic rule by now you have had it
expiainde often enough 中要用expiainde而不能用to explain

从整个句子分析来看,后面的you have had it explained often enough句中存在这样的句型：have had it explained.忽略掉过去完成时have done结构,我们有have it explained,即have sth done结构,表示某事已经被完成.如果用have it to explain,则表示有某事要去做,但现在还没做.understand?

为什么you should understand the traffic rule by now you have ha You should understand the traffic rule by now.You're had it you should understand the traffic rule by now.---you are had You should understand the traffic rule by now Youve had it e You shoud understand the traffic rule by now .You`ve had it( the,traffic,rule,know,must,you. ________ you understand the rule,you will have no further di If you break the traffic rule, you will never ________it. [& 1.__you understand the rule,you will have no further difficu i think you should understand by yourself? ____you understand this rule,you will have no further diffic 连词成句:the,traffic rule,know,must,you