单选题 On leaving school he became an office-boy and having no ______ to rise higher, he only wasted his time.
A. ambition B. determination C. success D. purpose

【正确答案】 A

【答案解析】[解析] A选项：ambition的意思为“抱负，雄心”，如：The glory of his country is his ambition．(为国增光是他的雄心。)句意：他离开学校后就当了一名勤杂工，没有提升自己的抱负，只是在浪费时光。故选A。
其他三项意思分别是：determination决心，确定；success成功，成就；purpose目的，用途，毅力。