that was so serious a matter that i had no chioce but to call in the police分析一下句子结构吧but在这里是连词?

That was ___that i had no choice but to call the policeA:such serious a matterB:so serious matterc:such a serious matterD:so a serious matter选哪个?为什么?（我现在正在初学英语, That was _______ matter that I had no choice but to talk it over with my parents.A.a such seriousC.such serious a D.so serious a that was so serious a matter that i had no chioce but to call in the police分析一下句子结构吧but在这里是连词? That was so serious a matter that I had no choice but ___ the police.A.called in B.calling in C.call in D.to call in 求指导 that was so serious a matter that I had no choice butthat was so serious a matter that I had no choice but _____the policeA） called in B）calling in C）call in D）to call inA错在哪里 前面不都是 was had 这样的词吗 he was so —— thought that he didn't see the pole on the roadA.buried inB.carsful withC.busy withD.serious about求详解 (1).The museum is not___it was ten years ago.A.that B.when C.which D.what(2).Now we can see___problem the population is.A.a what serious B.such serious a C.how serious a D.so a serious(3).She seemed to be more anxious than i___the job done.A.to get B Facing the accident,he thought it was so serious a matter that he had no choice but( ) the pFacing the accident,he thought it was so serious a matter that he had no choice but( ) the police.A.called in B.calling in C.call in D.to call in leave用法I was told that it was a very serious disease.If left___properly,the patient might lose his ability to walk about in just a year or so答A.untreated B.being untreated C.untreat Why so serious why so serious Why so serious the earthquake in japan,measuring 9.0 on the Richter Scale,was so violent（） cause a serious of explosions of the new nuclear reactors in several power stations.A.to B.that C.as toD.as that That was so serious a matter that I had no choice but ____ the police.(A) call in (B) calling in (C) called in (D) to call in同时说明原因, so why so serious是什么意思 (3/4)impression for my English teacher was that he was serious.4.I wan was so serious a matter that i had no choice but_____the police为什么不可以选择calling in 而要选择to call in我英语不好啊谁能帮我解释一下, what he had done was so serious that the judge did not make him to pay a fine.请高手给分析下此句的结构,并给翻译以下,感谢