关于occur的用法,请高人回答.老师一直强调take place, happen, occur只有主动没有被动,和不用进行时,但是我在做SAT题时遇到了反例,求高解!The shift from traditional to cosmetic dentistry (is because adults are gett

关于occur的用法,请高人回答.老师一直强调take place, happen, occur只有主动没有被动,和不用进行时,但是我在做SAT题时遇到了反例,求高解!The shift from traditional to cosmetic dentistry (is because adults are gett occur的用法 求occur的用法. Occur和 cause的用法 datedif()函数的用法,请高人指教. 谁能明白Lucene中的Occur.MUST_NOT,Occur.MUST,Occur.SHOULD的用法 occur to和happen to的区别我们常见:It happen to sb.那么,It occur to sb和上面的那句有什么区别呢?请具体给我occur和happen的用法 现在完成时的用法请回答, 关于who与whom的用法That can occur only when there are at least two parties ,each of whom has something to offer.请问,为什么用whom而不是who,这里应该是作主语啊?请赐教! occur的用法?和happen.take place 的区别 happen come about take place occur这组词的用法详解 求good和well的用法,求一英语高人 上课,老师因为我们没回答问题,生气了,我要写一篇作文关于这件事的希望高人帮我写完这作文! 请高人帮忙解释一句英文.急用it is therefore instructive to examine the conditions under which risk seeking are expected to occur.这是一篇有关不确定经济学（前景理论）的论文中的一句话.这应该是一个主语从句 老师您好,我是高一的学生留的作业归纳下列短语的类型,不会请高人指点谢谢.张杨幸福,感受音乐,读了一 关于称赞老师的成语、诗句和名言.（请一一回答） 一个关于写老师的作文题目过了今天没用了!请尽快回答. 有没有关于赞美老师的童心妙语?有意者请回答