A warm thought suddenly came to me I might use the picket money to buy some flowers for m

问题补充：

A warm thought suddenly came to me I might use the picket money to buy some flowers for my mother’s birthday.

A. if

B. when

C. that

D. which

答案：

A. if

B. when

(答案→)C. that

D. which

解析：考查同位语从句：句意：我突然想起一个温暖的想法，我可以用零花钱给妈妈买些花做为生日礼物。A warm thought是同位词，that连接的是同位语从句，对thought的内容进行说明，选C。