问题补充:
I bought two film tickets yesterday, I paid $40.
A. which
B. at which
C. when
D. for which
答案:
A. which
B. at which
C. when
(答案→)D. for which
解析:考查定语从句。本题的定语从句的先行词是two film tickets,在定语从句中which作为for的宾语。句子是一个固定词组pay for…付钱买…;本题是把定语从句中的介词提前到关系词的前面,定语从句的关系词前面的介词有三种来源:先行词的固定搭配,定语从句中的固定搭配,以及根据句子的意思选择的介词。昨天我买了两种电影票,为此我付了40美元。故D正确。