I finally saw the true colors of those two rows of white teeth.
I took a breath of shame, covered my head with a quilt and showed my face embarrassedly. These guys have come up with some bad ideas to treat me, but how do they know what I am thinking? When I peeked my head out of the quilt again, those two rows of white teeth had disappeared. Hey! I let out a long sigh, I blamed myself for listening to ghost stories so much and thinking about it all day, but almost scared myself to death. What I met just now on the tree-lined path and the white shadow I saw in the room was a ghost, but a black African student in white clothes!