We have worked out the plan and now we must put it into .A. factB. realityC. practiceD. de

问题补充：

We have worked out the plan and now we must put it into .

A. fact

B. reality

C. practice

D. deed

答案：

A. fact

B. reality

(答案→)C. practice

D. deed

解析：

put...into/in practice 为习惯用语，意思是“把……付诸实施”。