The rice made possible to produce one-third more of the crop in the same field.A. thatB.

问题补充：

The rice made possible to produce one-third more of the crop in the same field.

A. that

B. this

C. one

D. it

答案：

A. that

B. this

C. one

(答案→)D. it

解析：考查固定用法。句意“这种水稻使同一块地多产1/3的产量成为可能。”make it +形容词作宾补，意为“使......成为可能”。故选D。