问题补充:
单选题Longago,theCLAandotherUSintelligenceofficialsconcludedthatBinLaden_____theday–todayleaderoftheterroristorganizationhefoundedover10yearsago.A.was stopped beingB.had stopped to beC.have stopped beingD.had stopped being
答案:
D解析句意:很久以前,美国中央情报局面等的情报官员推断,本.拉登已经终上了对他十多年前他创立的恐怖组织的日常领导工作。因为主句时态为一般过去时,而从句动作发生在它之前,故需用过去完成时,且用主动语态,排除A、C。stop to do 停下来去做(别一件事);stop doing 停止做某事。因此选择D。