John F.Kennedywas_____youngestPresidentoftheUnitedStatesand_____tobemurdered.Canyourememberhowlonghe_____thecountrybeforehisdeath?
A.the;the fourth;had been ruling B./;fourth;have been ruling C.the;fourth;was ruling D.a;the four;ruled正确答案A
John F.Kennedywas_____youngestPresidentoftheUnitedStatesand_____tobemurdered.Canyourememberhowlonghe_____thecountrybeforehisdeath?
A.the;the fourth;had been ruling B./;fourth;have been ruling C.the;fourth;was ruling D.a;the four;ruled正确答案A
