Tomorrow would be Christmas Day and she had only $1.87.A. with which to buy a present to

问题补充：

Tomorrow would be Christmas Day, and she had only $1.87.

A. with which to buy a present to Jim

B. by which to buy Jim a present

C. with which she could buy a present for Jim

D. in which to buy Jim a present

答案：

A. with which to buy a present to Jim

B. by which to buy Jim a present

(答案→)C. with which she could buy a present for Jim

D. in which to buy Jim a present

解析：本题考查介词＋which/whom＋动词不定式。“介词＋which/whom＋动词不定式”结构一般充当句子的定语。此句中的with which to buy Jim a present 是动词不定式的一种特殊形式，在此作定语修饰 $1.87。