They found________impossible________everything ready in time．A.it，to getB.that，to getC.it，gettingD.that，getting
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A解析分析：动词find(发现)后面接动词不定式作宾语，宾语后面还有宾语补语时，要用it作形式宾语，把作宾语的动词不定式放到宾语补语的后面。句中it是形式宾语，to get everything ready in time是作宾语的动词不定式，impossible是宾语补语。句意是“他们发现要把一切都及时地准备好是不可能的。”(延伸)find作“发现”解释时，后面可以跟that从句，如：They found that it was impossible to get everything ready in time．本句中that引出宾语从句，从句中的主语是动词不定式，用it作形式主语放在前面，有连系动词was，impossible成为表语。(题型变化)They found that it was impossible to get everything ready in time．＝They found it impossible to get everything ready in time．