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题目内容
（西安石油大学大学英语）
The boy knew everything ____________ .(本题2.5分)
A、 the moment he was asked to stay behind
B、 when the teacher started talking about honesty
C、 only some time later
D、 when he was walking out of the room
A、 the moment he was asked to stay behind
B、 when the teacher started talking about honesty
C、 only some time later
D、 when he was walking out of the room
参考答案
