A warm thought suddenly ____ to me ____ I might use the pocket money to buy some flowers for

my mother's birthday. [ ]

A. occurred, if      

B. crossed, when    

C. came, that     

D. struck, that

微笑是一种礼节，见面时点头微笑，人们会意识到这是（）和欢喜的表示。

A.尊贵

B.尊重

C.亲和

D.爱慕