have the duty后面是用for吗?

have the duty后面是用for吗? have the duty of等于哪些结构 Teachers have the duty for the students` study.同义句Teachers ____ _____ _____ the students` study. has the duty for的同义词 Young people have the duty------ for their parents.A.to provide B.provide C.to providingD.provides knock off 后面可以直接跟work 吗? 是work 还是the work?2. I am off duty. 能不能改成现在完成时态.?I have been off duty. 如果是 现在完成时 是表示动作在 以前已经完成了, 还是说动作一直从过去 延续到 Each of the girls ______ an orange.Each _____ his duty.用have适当形式填空 the students on duty have clsed the windows改疑问句 Today is my on duty for the day. Today is my t___ for the moring traiffic duty I have off duty not only the parents but also their son ______ here for two yearsA.has come B.have been C.has been D.have come可是后面是here 不应该用come么。 如果要说付关税是 pay for duty.也不说pay money for duty 另外税金怎么说? The police are duty on the duty on road.这里为什么用are 而不是用is? The committee is under ___to reach agreement before this midnight.是用duty?还是pressure? 英语翻译“Gallant,but of gentle bearing,When the battle’s fought and wonFor the praise of men less caringThan the meed for duty done.”比较难 是诗歌 急 we have the duty to...请问这个the有必要改为a吗?we have the duty to...请问这个the有必要改为a吗? 请教大神一个英语句子.我实在是看不懂However,this must be weighed against the benifits for city children for whom we all have he geatest duty of care.我的问题是：1,这个句子啥个意思.2,这个句子的结构是啥样的?3,