A．He was afraid that the policeman might find the evidence of his crime.
B．He wanted his wife to keep the secret.
C．He wanted to tell his secret to the policeman indirectly.
D．He wanted to trick the policeman into digging up the land for him.

A．He travels to that library to get it.
B．He pays a little money to use it.
C．He reads it in the graduate school library.
D．He orders it from the publisher.