英语单项选择并求解释_the Department of Homeland Security identified more than 7000 sensitive dates spanning the next 20 years,it did manage to rule out several dates as future 9/11s.A since B because C though D when
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英语单项选择并求解释_the Department of Homeland Security identified more than 7000 sensitive dates spanning the next 20 years,it did manage to rule out several dates as future 9/11s.A since B because C though D when
英语单项选择并求解释
_the Department of Homeland Security identified more than 7000 sensitive dates spanning the next 20 years,it did manage to rule out several dates as future 9/11s.
A since B because C though D when
英语单项选择并求解释_the Department of Homeland Security identified more than 7000 sensitive dates spanning the next 20 years,it did manage to rule out several dates as future 9/11s.A since B because C though D when
选择B,从答案看,逗号前应该是一个从句,从内容上看,从句中描述的应该是原因,而主句表述结果,且由关键词“did”可以看出.排除CD.AB均是表示原因的从句的引导词,若为since引导的从句,则由主句时态可知identified前应该加had,且"did" 为强调语气,因此要用语气更强的because.
a,根据句子的意思来判断,后句did强调