—IwonderwhySamislateagain.  —Well，he

问题详情：

—I wonder why Sam is late again.  

—Well，he ________ his train，or maybe overslept.

A．might miss      B．must miss    C．may have missed    D．must have missed.

【回答】

C

知识点：虚拟语气与情态动词

题型：选择题