A warm thought came to me I might help wash my mom’s feet on Thanksgiving Day.
A. if
B. when
C. which
D. that
网友回答
A. if
B. when
C. which
(答案→)D. that
解析：考查同位语从句。本题的that引导同位语从句解释名词a warm thought的内容；这个同位语从句的句子结构很完整，that没有疑问的意思；只是在句中起连接的作用；本句中的固定句式sth e to sb某人想起某事；句意:我突然想起在感恩节这一天我也许可以帮助妈妈洗脚。故D正确。