It sounds like a good plan but there are some difficulties in carrying it out.A. practic

问题补充：

It sounds like a good plan, but there are some difficulties in carrying it out.

A. practiced

B. practical

C. practice

D. practicing

答案：

A. practiced

(答案→)B. practical

C. practice

D. practicing

解析：本题考查词性。根据题意可知此处应用形容词，practical表示实际的。句意：听上去是个好计划，但是实施起来却有现实困难。