单选题 10.He______another career but, at the time, he didn't have enough money to attend graduate school.
【正确答案】 A
【答案解析】He might have chosen another career“他也许就选择了另一种职业”，这是虚拟条件句表示结果的主句，but从句引出具体事实，说明没有这样做的原因，这是含蓄虚拟条件句的一种。