单项选择题
In history，past and present，those who start an aggressive war all come to a bad （）.
A.conclusionB.endC.finishD.doom
单项选择题 （）at Harvard，with his first year there，he began again to write poetry for the first time in a dozen years.
单项选择题 His chief difficulty（）people ignorant of Jeans machinations.
单项选择题 （）he may be，he will be happy.
