Some fish have a greater _______ for acid water than others.

A．they had been brought up on the assumption that they had work to do
B．they had not previously realized how degrading it would feel to be out of work
C．they were definitely not going to be able to work again
D．they did not expect to be the objects of middle-class criticism

A．he had spent his childhood in Burma
B．people in Burma hardly talked about unemployment
C．the English economy collapsed after he had gone abroad
D．England had been enjoying economic prosperity while he was in Burma