The fire made difficult to rescue the people trapped under the ruins in the earthquake.
A. /
B. this
C. that
D. it
网友回答
A. /
B. this
C. that
(答案→)D. it
解析：考查it用法。本题中的It是一耳光形式宾语，真正的宾语是后面的不定式to rescue the people trapped under the ruins in the earthquake.句意：大火让营救地震废墟下被围困的人变得很困难。故D正确。