Lucy was so pleased_______her son won the first place in the long jump competition A.that B.when
问题描述：
Lucy was so pleased_______her son won the first place in the long jump competition A.that B.when
请问为什么答案选when,不能选that的理由是什么?此处不能理解为结果状语从句吗?请给出有说服力的理由.
答
根据语境,“不是如此开心,以至于获得第一名.”,而是“当她儿子在长跑中得第一名时,Lucy是如此开心.”