In the hot sun the surface of the road seems wet, but that is on

In the hot sun the surface of the road seems wet, but that is only an（）.


A、

allusion


B、

illusion


C、

expectation


D、

exception


【正确答案】：B
【题目解析】：

seem似乎，说明事实上不是，原句意思是“在阳光底下，路面显得很湿，但那只是错觉。“allusion暗示，提及；expectation期待，期望；exception例外。illusion幻觉，错觉；因此选B.