问题补充:
A warm thought suddenly came to me I might substitute the hero to buy some flowers for his mother’s 60th 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。thought“想法,念头”;came to sb.“(想法)出现在某人头脑中”;that引导同位语从句,是对thought的补充说明。故选C。