问题
选择题
—Why wasn't John hired for the job?
—I don't know, but he ________.
A．was
B．had been
C．should have
D．should have been
答案
答案：D
D 考察情态动词和省略。句义：—为什么John没有被录用？—不知道，他本该被录用的。Should have done本该做某事，实际上却没有做；故D正确。
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