problems exist in teenagers说三个就行.请说明理由,多说点啊

problems exist in teenagers说三个就行.请说明理由,多说点啊 英语翻译①Numerous examples exist of translation problems in advertising.②Many advertisements feature famous people. 英语翻译帮忙翻译Most environment problems exist because adequate measures for preventing them were not taken in the past. What social problems in the exist on college campus how to solve them?英语回答,50词左右, environmental problems exist because adequate measures for preventing themMost environmental problems exist because adequate measures for preventing them_ taken in the past.A.was notB.were notC.were not beingD.being not想问问其他为什么不选 exist in和exist on的区别 You Exist In My Most environmental problems exist because adequate measures for preventing them_____taken in the paA、was notB、were not beingC、were notD、being not Most environmental problems?Most environmental problems exist because adequate for preventing them…taken in the past.…were not,were not being,had not been.选什么?其它怎么不对? exist 英语翻译4.Scientific uncertainty will exist in the flow alteration–ecological response relationships,in part because of the confounding of hydrologic alteration with other importantenvironmental determinants of river ecosystem condition (e.g.te in the society ____women work outside their homes,there exist many social problems.A.where B,which 我感觉是which啊 不是 in which =where吗 前面有in了 可为什么答案是where 英语翻译V.Translate the following sentences into Chinese.（句子英译中)66.Many runners say running makes headaches,stomachaches,and other minor medical problems go away.67.In fact,the word “weekend” did not even exist in the English lang Most environmental problems exist because adequate measures for preventing them___taken in the past.A.was not B.were not C.were not being D.being not 请说明原因, Most environmental problems exist because adequate measures for preventing them_____taken in the paA、was notB、were not beingC、were notD、being not选哪个 详细 分析下各个选项.这个题对我很重要 .感谢帮助.还有 been 和b 单选Most environmental problems exist because adequate for preventing them __ takeen in the past.A.was not B.were not being C.were not D.being not答案怎么不是B? 英语翻译9.Problems of resolving contradictory findingsWhen research leads to contradictory findings,the latter should be discarded.Or before accepting these explanations,the researchers consider the possibility that contradictions exist in their shows changes exist in our life.