【单选题】 He ______ another career but, at the time, he didn't have enough money to attend graduate school.
A．might have chosen
B．might choose
C．had to choose
D．must have chosen
网考网参考答案：A
网考网解析：
虚拟语气。从上下文判断他实际并没有选择其他职业，原因是因为没钱读书，所以本句是对过去已发生事件的虚拟假设，所以使用might have done句型。
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