问题补充:
----Did the reference give the information you needed?
----Yes, but it, I had to read it entirely.
A. to find
B. having found
C. finding
D. find
答案:
(答案→)A. to find
B. having found
C. finding
D. find
解析:本题考察的是不定式的一个重点用法:不定式在句中做目的状语。句义:—参考书里给了你需要的信息吗?—是的,但是为了找到这些信息,我不得不把它完全读了一遍。根据句义说明A正确。