1.Scientists are convinced_the positive effect of laughter_physical and mental health.A.of;at B.by;in C.of;on D.on;at2.The news shoocked the public,___to great concern about students' safety at school.A.having led B.led C.leading D.to lead3.The f

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1.Scientists are convinced___the positive effect of laughter___physical and mental health.A.of;at B.by;in C.of;on D.on;at2.The news shoocked the public,___to great concern about students' safety at school.A.having led B.led C.leading D.to lead3.The f
1.Scientists are convinced___the positive effect of laughter___physical and mental health.
A.of;at B.by;in C.of;on D.on;at
2.The news shoocked the public,___to great concern about students' safety at school.
A.having led B.led C.leading D.to lead
3.The financial crisis that originated on Wall Street swept the world,thus___large numbers of workers jobless.
A.leaving B.to leave C.left D.have left
4.It raind heavily in the south,___serious flooding in several province.
A.causded B.having caused C.causing D.to cause
5.By far,there are many problems___to be solved.
A.remaining B.remained C.being remained D.to remain
C.C.A.C.A

5.a 这个题很经典，也是我到现在也很没把握的题，书上很多介绍这个的，回头查查吧兄弟，这几道题很经典，我一道有把握的都没有。。。好题啊！呵呵

1.be convinced of sth.相信某事effect on sth.对某事的影响2.the news 为句子主语，shocked为谓语，leading为分词表结果，是主动。3.用2的方法理解一下句意。4.同25.rimaining为现在分词，表主动，修饰problems

many scientists are again becoming excited--- We Are Scientists的《Tonight》歌词 We Are Scientists的《Dinosaurs》歌词 We Are Scientists的《Impatience》歌词 We Are Scientists的《Spoken For》歌词 We Are Scientists的《Get Off》歌词 We Are Scientists的《Impatience》歌词 We Are Scientists的《Dance Off》歌词 Other scientists are impressed but cautious. Among,between,with哪个正确：Between them are lawyers,diplomats and scientists.Among them are lawyers,diplomats and scientists.With them are lawyers,diplomats and scientists. They are doing some exercise ______a PE lessonAat Bin Con Scientists are trying to make desert into good land again. but many scientists are both care and careless We Are Scientists的《It S A Hit》歌词 Scientists are trying to make robots (Scientists are trying to make robots ( )like humans 填look的什么形式 Scientists think that the continents___always where they ___today.A.weren't:are B.aren't:are 改错 The scientists who are probably mostly interested in flights to the moon are geologists. 英语翻译The scientists are on fire for gravitivity.They are on fire for superstars.怎么翻译?