Which of the following is right? [ ] A．He couldn't find the key for the door. B．
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Which of the following is right?
[]
A．He couldn't find the key for the door.
B．The notes to the text are not easy to be understood.
C．Jack worked hard in order to gain the entrance to medical school.
D．The answer to the question came out wrong.
试题答案
答案：D