Question

【题目】A warm thought suddenly came to me _______ I might buy some flowers for my friend's mother’s 60th birthday.

A． if B． when C． that D． which

Answer 1

【答案】C

【解析】分析句子的成分以及句子的意思，可知这是一个同位语从句，在从句中没有缺少句子成分而且意思完整，故填在从句中没有任何意思的that，故选C。