国家开放大学 / 综合英语（3）
正确率：100%
This passage is mainly about _ _ _ _ _ _ _ _ .
A.why we dream during sleep
B.how we dream during sleep
C.what dreams are
D.what benefits dreams bring to people
A.why we dream during sleep
B.how we dream during sleep
C.what dreams are
D.what benefits dreams bring to people
参考答案：
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