题目内容
She’s already an hour late, What _____to her?
A can have happened B may happen
C should have happened D may have happened
【答案】
D
含蓄条件句.有时为了表达的需要,在虚拟语气中并不总是出现if引导的条件句,而通过介词短语without来替代条件句If there were no electricity.
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